Answer:
Fractional Distillation
Explanation:
Fractional Distillation is more effective as compared to simple distillation. In simple distillation, the temperature changes more gradually as compared to the fractional distillation
LAB: Warm up: Drawing a right triangle This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or* Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character. (2 pts) Example output for triangle_char = % and triangle_height = 5: Enter a character: Enter triangle height: 5 273334.1408726 LAB ACTIVITY 16.6.1: LAB: Warm up: Drawing a right triangle 0/3 main.py Load default template... 1 triangle_char - input('Enter a character:\n') 2 triangle_height = int(input('Enter triangle height:\n')) 3 print('') 4 5 print ('*') 6 print ("**') 7 print ("***') 8
Answer:
The modified program in Python is as follows:
triangle_char = input('Enter a character:\n')
triangle_height = int(input('Enter triangle height:\n'))
for i in range(triangle_height):
print(triangle_char * (i+1))
Explanation:
This gets the character from the user
triangle_char = input('Enter a character:\n')
This gets the height of the triangle from the user
triangle_height = int(input('Enter triangle height:\n'))
This iterates through the height
for i in range(triangle_height):
This prints extra characters up to the height of the triangle
print(triangle_char * (i+1))
Here's the modified program that incorporates the requested changes:
python
Copy code
triangle_char = input('Enter a character:\n')
triangle_height = int(input('Enter triangle height:\n'))
print('')
for i in range(1, triangle_height + 1):
line = triangle_char * i + ' ' * (triangle_height - i)
print(line)
This program uses a loop to iterate from 1 to triangle_height. In each iteration, it creates a line by concatenating triangle_char repeated i times with spaces (' ') repeated (triangle_height - i) times. The resulting line is then printed.
For example, if the user enters % as the character and 5 as the height, the output will be to make sure to maintain the indentation properly in your code for it to work correctly.
Learn more about python on:
https://brainly.com/question/30391554
#SPJ6
Compare and contrast the older multiplexing techniques such as frequency division and time division multiplexing with the newer techniques such as discrete multitone and orthogonal frequency division multiplexing. What appears to be the trend in these newer protocols?
Answer:
As compared to new multiplexing techniques, older techniques like FDM frequency-division multiplexing (FDM) may be a technique by which the entire bandwidth available during a communication medium is split into a series of non-overlapping frequency sub-bands, each of which is employed to hold a separate signal.
Explanation:
Especially used for Radio and tv Broadcasting and TDM ( Time-division multiplexing (TDM) may be a method of transmitting and receiving independent signals over a standard signal path by means of synchronized switches at each end of the cable in order that each signal appears on the road only a fraction of your time in an alternating pattern, especially used for telegraphy) are simple; they'll be suffering from noise and their transmission speeds are high. New techniques are far more complex, they will be suffering from more noise and transmission speeds are very high as compared to older techniques.
Write a class named Pet, with should have the following data attributes:1._name (for the name of a pet.2._animalType (for the type of animal that a pet is. Example, values are "Dog","Cat" and "Bird")3._age (for the pet's age)The Pet class should have an __init__method that creates these attributes. It should also have the following methods:-setName -This method assigns a value to the_name field-setAnimalType - This method assigns a value to the __animalType field-setAge -This method assigns a value to the __age field-getName -This method returns the value of the __name field-getAnimalType -This method returns the value of the __animalType field-getAge - This method returns the value of the __age fieldWrite a program that creates an object of the class and prompts the user to enter the name, type, and age of his or her pet. This should be stored as the object's attributes. Use the object's accessor methods to retrieve the pet's name, type and age and display this data on the screen. Also add an __str__ method to the class that will print the attributes in a readable format. In the main part of the program, create two more pet objects, assign values to the attirbutes and print all three objects using the print statement.Note: This program must be written using Python language
Answer:
Explanation:
The following is written in Python, it contains all of the necessary object attributes and methods as requested and creates the three objects to be printed to the screen. The first uses user input and the other two are pre-built as requested. The output can be seen in the attached image below.
class Pet:
_name = ''
_animalType = ''
_age = ''
def __init__(self, name, age, animalType):
self._name = name
self._age = age
self._animalType = animalType
def setName(self, name):
self._name = name
def setAnimalType(self, animalType):
self._animalType = animalType
def setAge(self, age):
self._age = age
def getName(self):
return self._name
def getAnimalType(self):
return self._animalType
def getAge(self):
return self._age
def __str__(self):
print("My Pet's name: " + str(self.getName()))
print("My Pet's age: " + str(self.getAge()))
print("My Pet's type: " + str(self.getAnimalType()))
name = input('Enter Pet Name: ')
age = input('Enter Pet Age: ')
type = input('Enter Pet Type: ')
pet1 = Pet(name, age, type)
pet1.__str__()
pet2 = Pet("Sparky", 6, 'collie')
pet3 = Pet('lucky', 4, 'ferret')
pet2.__str__()
pet3.__str__()
What are the basic characteristics of the linear structure in data structure
Explanation:
A Linear data structure have data elements arranged in sequential manner and each member element is connected to its previous and next element. This connection helps to traverse a linear data structure in a single level and in single run. Such data structures are easy to implement as computer memory is also sequential.
A reflective cross-site scripting attack (like the one in this lab) is a __________ attack in which all input shows output on the user’s/attacker’s screen and does not modify data stored on the server.
Answer:
" Non-persistent" is the right response.
Explanation:
A cross-site category of screenplay whereby harmful material would have to include a transaction to have been transmitted to that same web application or user's device is a Non-persistent attack.Developers can upload profiles with publicly available information via social media platforms or virtual communication or interaction.what are the different steps while solving a problem using computer? explain
Explanation:
The following six steps must be followed to solve a problem using computer.
Problem Analysis.
Program Design - Algorithm, Flowchart and Pseudocode.
Coding.
Compilation and Execution.
Debugging and Testing.
Program Documentation.
what is a microscope
Answer:
an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times
Answer:
A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eyes.
A wireless router is what kind of networking device?
Select one
a. End device
b. Intermediary device
c Peripheral Device
d. Connecting Device
Answer:
D, routers enable us to connect to the internet.
Challenge: What is the largest decimal value you can represent, using a 129-bit unsigned integer?
Answer:
680564733841876926926749214863536422911
Explanation:
2¹²⁹ - 1 = 680564733841876926926749214863536422911
4. All of the following statements are true EXCEPT one. Which
statement is NOT true?
Select the best option.
Communication occurs between senders and receivers within a context by messages sent
through visual and auditory channels.
Communication includes both the verbal and nonverbal messages sent and received.
The goal of effective communication is mutual understanding.
You can improve your communication by improving your understanding of yourself, others,
and the context of the communication.
When you are listening to another person speak, you can avoid sending any messages by not
speaking and not making eye contact.
Answer:
D
Explanation:
Communication are happen when 2 people are response each other
It is not true that when you are listening to another person speak, you can avoid sending any messages by not speaking and not making eye contact. The correct option is 4.
What is communication?The process of communicating information, concepts, ideas, or sentiments between two or more people through a variety of means and channels, including verbal and nonverbal communication, is referred to as communication.
It is a myth that you may avoid transmitting any messages when you are listening to someone else speak by remaining silent and avoiding eye contact.
Your body language and nonverbal communication, such as your facial expressions and eye contact, can still convey information to the speaker even if you are not replying verbally or establishing eye contact.
Hence, even if a message is unintended or nonverbal, all types of communication entail sending and receiving messages.
Thus, the correct option is 4.
For more details regarding communication, visit:
https://brainly.com/question/22558440
#SPJ2
Your question seems incomplete, the probable complete question is:
All of the following statements are true EXCEPT one. Which
statement is NOT true?
Select the best option.
Communication occurs between senders and receivers within a context by messages sent through visual and auditory channels.Communication includes both the verbal and nonverbal messages sent and received. The goal of effective communication is mutual understanding.You can improve your communication by improving your understanding of yourself, others, and the context of the communication.When you are listening to another person speak, you can avoid sending any messages by not speaking and not making eye contact.Select all that apply to Enums: Group of answer choices While mainly a readability feature, we can technically use Enum to do things like spoof a boolean type in C allowing us some level of functionality Enums let us build a series of any kind of constant Enums allow us to print names for integers instead of numbers Enums are great for representing states and other common constants like colors Enums let us specifically value each constant we create Flag question: Question 59 Question 59
Answer:
-- While mainly a readability feature, we can technically use Enum to do things like spoof a Boolean type in C allowing us some level of functionality.
-- Enums are great for representing states and other common constants like colors.
-- Enums let us specifically value each constant we create.
Explanation:
Enums is a part of a programming language which helps a developer or a programmer to defined a set of the named constants. Using the enums will help in making it easier to document the intent and also to create set of distinct cases.
Option 1 is applicable as in the Boolean there are only TRUE and FALSE values. By using enum one can add more state like that of being difficult or normal or easy.
Option 4 is applicable because enums are used to represent various states and also other constants.
Option 5 is also applicable they allow the developer to create each value constant.
how can you reduce the size of icons on the Taskbar by using the control panel is there another method of doing the same using right click explain
Answer:
Right-click on any empty area of the taskbar and click “Taskbar Settings.” In the settings window, turn on the “Use small taskbar icons” option. As you can see, almost everything is the same except that the icons are smaller and you can cram a few more into the space.
Design an if-then statement ( or a flowchart with a single alternative decision structure that assigns 20 to the variable y and assigns 40 to the variable z if the variable x is greater than 100?
Answer:
The conditional statement and its flowchart can be defined as follows:
Explanation:
Conditional statement:
if x>100 Then //defining if that check x value greater than 100
y=20//holding value in the y variable
z=40//holding value in z variable
End if
how can you explain that algorithm and flowchart are problem solving tools?
Answer:
Algorithm and flowchart are the powerful tools for learning programming. An algorithm is a step-by-step analysis of the process, while a flowchart explains the steps of a program in a graphical way. Algorithm and flowcharts helps to clarify all the steps for solving the problem.
You are tasked with writing a program to process sales of a certain commodity. Its price is volatile and changes throughout the day. The input will come from the keyboard and will be in the form of number of items and unit price:36 9.50which means there was a sale of 36 units at 9.50. Your program should read in the transactions (Enter at least 10 of them). Indicate the end of the list by entering -99 0. After the data is read, display number of transactions, total units sold, average units per order, largest transaction amount, smallest transaction amount, total revenue and average revenue per order.
Answer:
Here the code is given as,
Explanation:
Code:
#include <math.h>
#include <cmath>
#include <iostream>
using namespace std;
int main() {
int v_stop = 0,count = 0 ;
int x;
double y;
int t_count [100];
double p_item [100];
double Total_rev = 0.0;
double cost_trx[100];
double Largest_element , Smallest_element;
double unit_sold = 0.0;
for( int a = 1; a < 100 && v_stop != -99 ; a = a + 1 )
{
cout << "Transaction # " << a << " : " ;
cin >> x >> y;
t_count[a] = x;
p_item [a] = y;
cost_trx[a] = x*y;
v_stop = x;
count = count + 1;
}
for( int a = 1; a < count; a = a + 1 )
{
Total_rev = Total_rev + cost_trx[a];
unit_sold = unit_sold + t_count[a];
}
Largest_element = cost_trx[1];
for(int i = 2;i < count - 1; ++i)
{
// Change < to > if you want to find the smallest element
if(Largest_element < cost_trx[i])
Largest_element = cost_trx[i];
}
Smallest_element = cost_trx[1];
for(int i = 2;i < count - 1; ++i)
{
// Change < to > if you want to find the smallest element
if(Smallest_element > cost_trx[i])
Smallest_element = cost_trx[i];
}
cout << "TRANSACTION PROCESSING REPORT " << endl;
cout << "Transaction Processed : " << count-1 << endl;
cout << "Uints Sold: " << unit_sold << endl;
cout << "Average Units per order: " << unit_sold/(count - 1) << endl;
cout << "Largest Transaction: " << Largest_element << endl;
cout << "Smallest Transaction: " << Smallest_element << endl;
cout << "Total Revenue: $ " << Total_rev << endl;
cout << "Average Revenue : $ " << Total_rev/(count - 1) << endl;
return 0;
}
Output:
Write a static method named lowestPrice that accepts as its parameter a Scanner for an input file. The data in the Scanner represents changes in the value of a stock over time. Your method should compute the lowest price of that stock during the reporting period. This value should be both printed and returned as described below.
Answer:
Explanation:
The following code is written in Java. It creates the method as requested which takes in a parameter of type Scanner and opens the passed file, reads all the elements, and prints the lowest-priced element in the file. A test case was done and the output can be seen in the attached picture below.
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
class Brainly{
public static void main(String[] args) throws FileNotFoundException {
Scanner console = new Scanner(System.in);
System.out.print("file location: ");
String inputLocation = console.next();
File inputFile = new File(inputLocation);
Scanner in = new Scanner(inputFile);
lowestPrice(in);
}
public static void lowestPrice(Scanner in) {
double smallest = in.nextDouble();
while(in.hasNextDouble()){
double number = in.nextDouble();
if (number < smallest) {
smallest = number;
}
}
System.out.println(smallest);
in.close();
}
}
In C complete the following:
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
print all values pointed by ptr. //complete this part
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
call the printValues function passing the array data //complete this part
}
Answer:
#include <stdio.h>
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
for(int i=0; i<count; i++) {
printf("%d ", ptr[i]);
}
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
printValues( data, sizeof(data)/sizeof(data[0]) );
}
Explanation:
Remember that the sizeof() mechanism fails if a pointer to the data is passed to a function. That's why the count variable is needed in the first place.
five technology tools and their uses
Answer:
Electronic boards
Videoconferencing ability
Search engines
Cloud services
Computing softwares
Explanation:
Technology tools are used to simplify task bring ease, comfort as well as better satisfaction :
The use of electronic boards for teaching is an essential tool for students and educators alike as it provides great features aloowibg teachers to write and make drawings without hassle. This clear visual display goes a long way to aide student's understanding.
Videoconferencing breaks the barrier that distance and having to travel bring swhen it comes to learning. With this tools, students and educators can now organize classes without having to be physically present un the same class room.
Search engines : the means of finding solutions and hints to challenging and questions is key. With search engines, thousands of resources can now be assessed to help solve problems.
Cloud services : this provud s a store for keeping essential information for a very long time. Most interestingly. These documents and files can be assessed anywhere, at anytime using the computer.
Computing softwares : it often seems tune consuming and inefficient solving certain numerical problems, technology now p ovide software to handles this calculation and provides solutions in no time using embedded dded to codes which only require inputs.
1) It is possible to email a document
directly from the Word application.
O FALSE
O TRUE
Answer:
True
Explanation:
Physical safeguards, also called logical safeguards, and are applied in the hardware and software of information systems.
a. True
b. False
Answer:
False
Explanation:
They are not applied in the hardware and software of information systems.
Dan frequently organizes meetings and would like to automate the handling of the meeting responses. What should he
do to automatically move those responses into a subfolder?
O Configure an automatic reply.
O Configure the default meeting request options.
O Configure a Meeting Response Rule.
O Nothing, Dan must respond individually.
Answer:
Configure an automatic reply.
Explanation:
Dan's best option would be to configure an automatic reply. This reply will instantly be sent to any individual that messages Dan requesting a meeting. Once configured, Dan will no longer need to manually respond to each one of the messages and it will instead be handled automatically. These messages will also be automatically moved to the outbox where the messages that have been sent usually go.
Answer:
C
Explanation:
Which XXX declares a student's name. public class Student { XXX private double myGPA; private int myID; public int getID() { return myID; } } Group of answer choices String myName; public String myName; private myName; private String myName;
Which XXX declares a student's name.
public class Student {
XXX
private double myGPA;
private int myID;
public int getID() {
return myID;
}
}
Group of answer choices
a. String myName;
b. public String myName;
c. private myName;
d. private String myName;
Answer:private String myName;
Explanation:To declare a student's name, the following should be noted.
i. The name of the student is of type String
ii. Since all of the instance variables (myGPA and myID) have a private access modifier, then myName (which is the variable name used to declare the student's name) should be no exception. In other words, the student's name should also have a private access.
Therefore, XXX which declares a student's name should be written as
private String myName;
Option (a) would have been a correct option if it had the private keyword
Option (b) is not the correct option because it has a public access rather than a private access.
Option (c) is not a valid syntax since, although it has a private access, the data type of the variable myName is not specified.
Option (d) is the correct option.
01 Describe all the possible component of a chart
Answer:
Explanation:
1) Chart area: This is the area where the chart is inserted. 2) Data series: This comprises of the various series which are present in a chart i.e., the row and column of numbers present. 3) Axes: There are two axes present in a chart. ... 4)Plot area: The main area of the chart is the plot area
Write a program named prices.c that repeatedly asks users to enter the price of an item until they enter zero. Prices less than zero will be ignored. The program will then print the number of items purchased, the subtotal of the prices, the sales tax charged (at a rate of 7.5%), and the grand total.
Answer:
Explanation:
The following is written in Java. It creates a while loop that requests price from the user and goes adjusting the quantity and subtotal as more prices are added. If 0 is entered it breaks the loop and outputs the quantity, subtotal, tax, and grand total to the user.
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int quantity = 0;
double subtotal = 0;
double tax, grandTotal;
while (true) {
System.out.println("Enter a price: ");
double price = in.nextDouble();
if (price == 0) {
break;
} else if (price > 0) {
quantity += 1;
subtotal += price;
}
}
tax = subtotal * 0.075;
grandTotal = subtotal + tax;
System.out.println("Quantity: $" + quantity);
System.out.println("Subtotal: $" + subtotal);
System.out.println("Tax: $" + tax);
System.out.println("GrandTotal: $" + grandTotal);
}
}
explain any two factors to consider when classifying computer systems
Answer:
The following classifications can be made of the computer systems:
1. According to size.
2. Functionality based on this.
3. Data management based.
Explanation:
Servers:-
Servers are only computers that are configured to offer clients certain services. Depending on the service they offer, they are named. For example security server, server database.
Workstation:-
These are the computers which have been designed mainly for single users. They operate multi-user systems. They are the ones we use for our daily business/personal work.
Information appliances:-
They are portable devices that perform a limited number of tasks such as basic computations, multimedia playback, internet navigation, etc. They are commonly known as mobile devices. It has very limited storage and flexibility and is usually "as-is" based.
A palindrome is a string that reads the same from left to right and from right to left. Design an algorithm to find the minimum number of characters required to make a given string to a palindrome if you are allowed to insert characters at any position
Answer:
Explanation:
The following code is written in Python. It is a recursive function that tests the first and last character of the word and keeps checking to see if each change would create the palindrome. Finally, printing out the minimum number needed to create the palindrome.
import sys
def numOfSwitches(word, start, end):
if (start > end):
return sys.maxsize
if (start == end):
return 0
if (start == end - 1):
if (word[start] == word[end]):
return 0
else:
return 1
if (word[start] == word[end]):
return numOfSwitches(word, start + 1, end - 1)
else:
return (min(numOfSwitches(word, start, end - 1),
numOfSwitches(word, start + 1, end)) + 1)
word = input("Enter a Word: ")
start = 0
end = len(word)-1
print("Number of switches required for palindrome: " + str(numOfSwitches(word, start, end)))
Write a C class, Flower, that has three member variables of type string, int, and float, which respectively represent the name of the flower, its number of pedals, and price. Your class must include a constructor method that initializes each variable to an appropriate value, and your class should include functions for setting the value of each type, and getting the value of each type.
Answer and Explanation:
C is a low level language and does not have classes. The language isn't based on object oriented programming(OOP) but is actually a foundation for higher level languages that adopt OOP like c++. Using c++ programming language we can implement the class, flower, with its three variables/properties and functions/methods since it is an object oriented programming language.
in order to switch from paper to digital medical records the hospital bought in several individuals to introduce and implement the tools needed to organize the files . These individuals would best be described as
Available options are:
A. Technical champions
B. Engaged filmmakers
C. Business partners
D. Compliance champions
Answer:
Technical champions
Explanation:
Given that a "Technical Champion" is someone whose responsibility is to introduce and perform the role of enabling the use of technology, development of skills across the organization, and strengthen communication between Information Technology and the staff or employees.
Hence, in this case, considering the job descriptions described in the question above, these individuals would best be described as TECHNICAL CHAMPIONS
Write a public static method named print Array, that takes two arguments. The first argument is an Array of int and the second argument is a String. The method should print out a list of the values in the array, each separated by the value of the second argument.
For example, given the following Array declaration and instantiation:
int[] myArray = {1, 22, 333, 400, 5005, 9}; printArray(myArray, ", ") will print out 1, 22, 333, 400, 5005, 9
printArray(myArray, " - ") will print out 1 - 22 - 333 - 400 - 5005 - 9
Answer:
Here is the output.
Explanation:
import java.util.Arrays;
public class Main{
public static void main(String[] args){
int[] array={43,42,23,42,4,56,36,7,8,676,54};
System.out.println(Arrays.toString(array));
printArray(array,"*");
System.out.println(""+getFirst(array));
System.out.println(""+getLast(array));
System.out.println(Arrays.toString(getAllButFirst(array)));
System.out.println(""+getIndexOfMin(array));
System.out.println(""+getIndexOfMax(array));
System.out.println(Arrays.toString(swapByIndex(array, 1,2)));
System.out.println(Arrays.toString(removeAtIndex(array,3)));
System.out.println(Arrays.toString(insertAtIndex(array,3,65)));
}
//---1----
public static void printArray(int[] arr, String sep){
for(int i=0; i<arr.length-1;i++){
System.out.print(" "+arr[i]+" "+sep);
}
System.out.println(" "+arr[arr.length-1]);
}
//---2----
public static int getFirst(int[] arr){
return arr[0];
}
//---3----
public static int getLast(int[] arr){
return arr[arr.length-1];
}
//---4-----
public static int[] getAllButFirst(int[] arr){
int[] anotherArray=new int[arr.length-1];
for(int i=1; i<arr.length;i++){
anotherArray[i-1]=arr[i];
}
return anotherArray;
}
//---5------
public static int getIndexOfMin(int[] arr){
int index=0;
int min=arr[0];
for(int i=1; i<arr.length;i++){
if(min>arr[i]){
min=arr[i];
index=i;
}
}
return index;
}
//---6------
public static int getIndexOfMax(int[] arr){
int index=0;
int max=arr[0];
for(int i=1; i<arr.length;i++){
if(max<arr[i]){
max=arr[i];
index=i;
}
}
return index;
}
//---7------
public static int[] swapByIndex(int[] arr, int a , int b){
int temp=arr[a];
arr[a]=arr[b];
arr[b]=temp;
return arr;
}
//---8------
public static int[] removeAtIndex(int[] arr, int index){
int[] anotherArray = new int[arr.length - 1];
for (int i = 0, k = 0; i < arr.length; i++) {
if (i == index) {
continue;
}
anotherArray[k++] = arr[i];
}
// return the resultant array
return anotherArray;
}
//---9------
public static int[] insertAtIndex(int[] arr, int index, int element){
int[] anotherArray = new int[arr.length + 1];
for (int i = 0, k=0;k < arr.length+1; k++) {
if (k == index) {
anotherArray[k]=element;
continue;
}
anotherArray[k] = arr[i++];
}
// return the resultant array
return anotherArray;
}
//---10------
public static boolean isSorted(int[] arr){
for(int i=0; i<arr.length-1;i++){
if (arr[i+1]<arr[i]){
return false;
}
}
return true;
}
}
Which of the following Python methods is used to perform hypothesis testing for a population mean when the population standard deviation is unknown?
a. uttest(dataframe, null hypothesis value)
b. ztest(dataframe, null hypothesis value)
c. prop_1samp_hypothesistest(dataframe, n, alternative hypothesis value)
d. ttest_1samp(dataframe, null hypothesis value)
Answer:
B: ztest(dataframe, null hypothesis value)
The Python method that is used to perform a test of hypothesis for a population mean with an unknown population standard deviation is d. ttest_1samp(dataframe, null hypothesis value).
A t-test is normally applied when the population standard deviation is not known. The researcher will use the sample standard deviation.While the z-test can also be used in Python to perform hypothesis testing with a known population standard deviation and a sample size that is larger than 50, only the t-test can be applied with an unknown population standard deviation or a sample size less than 50.Thus, the only Python method to carry out hypothesis testing with unknown population standard deviation is the t-test, which is given in option d.
Learn more about hypothesis testing at https://brainly.com/question/15980493
