Mathematics College

5. Past experience shows that the standard deviation of the distances traveled by consumers to patronize Chinese restaurants is 2 km. How large a sample is needed to estimate the population mean distance traveled to within 0.4 km

Answers

Answer 1

Answer:

96

Step-by-step explanation:

Given that :

Standard deviation (s) = 2km

Error in estimation is within 0.4 km ; Error (E) = 0.4 km

Using the relation :

Sample size = ((Zα/2 * s) /E)^2

Using α = 0.05

The Zcritical at 0.05 = Z0.025 = 1.96

Sample size = ((1.96 * 2) / 0.4)^2

Sample size = (3.92 / 0.4)^2

Sample size = 9.8²

Sample size = 96.04

Required sample size = 96

Related Questions

Solve the inequality​

Answers

Answer:

x<2

Step-by-step explanation:

5x+10>14x-8

18>9x

2>x

x < 2 hope that helps

what is the slope of the line shown in graph
A. -2
B. -1
C. 1/-2
D. 1/2​

Answers

Answer:

-1/2

Step-by-step explanation:

using rise over run its 1/-2 which is just -1/2

A bakery is making apple pies and carrot cakes. Each
apple pie nets $5 profit. For each carrot cake, they
make $10 profit. Each pie take 4 hours to prepare and
1.5 hours to bake. The carrot cakes take 0.5 hours to
prepare and 0.5 hours to bake. The maximum
preparation time is 20 hours. The maximum baking
time is 10 hours. How many pies and cakes should be
made to maximize profits?

Answers

Answer:

8 thats how many pies and cakes you can do

Step-by-step explanation:

you have 20 minutes and 10 and the most cakes you can get with left over is 8

The pies and cakes should be made to maximize profits is 8 pies.

What is profit?

Profit is defined as the sum of revenue and income after all costs have been deducted by a business. A function with a business-oriented focus is called a profit function. The main goal of a business is to generate income through the sale of goods and services, minus the costs associated with producing those goods and services, in order to turn a profit.

Revenue minus costs equals profit.

Costs comprise both variable costs and fixed costs, whereas revenue is the total amount of positive cash flow that a business generates.

The maximum number of cakes you can get with leftovers in 20 minutes and 10 is 8.

Thus, the pies and cakes should be made to maximize profits is 8 pies.

To learn more about profit, refer to the link below:

https://brainly.com/question/15036999

#SPJ2

write a word problem for 8x - 5 = 40

Answers

Answer:

Bob only has 40 dollars but he wants to buy a membership at the gym. It cost 8 dollars per month to receive a gym card. Bob went to the Gym in person so they gave him a 5 dollar off coupon. How many months can Bob buy?

Step-by-step explanation:

Answer:

eight and a variable subtracted by five equals forty

Step-by-step explanation:

6. Slope =
Y-Intercept
Equation in slope-intercept form:

Answers

Slope = 0.5x
Y intercept = 1
Equation: 0.5x +1

Does anyone know the answer to this question

Answers

The answer is B.16! all you have to do is take 1.19 and multiply it by 16 to get under 20 (16•1.19=19.04):)
Other Questions
the LCM of 6 and 9 is _____. plzzz help answer tyhese i need these definitions pleaserepetition:figurative language:rhetorical device: In Furman v. Georgia, the Supreme Court ruled that the death penalty violated the Eighth Amendment because the death penalty wasA)used to deter criminals.B)used in nonviolent cases C) applied unequally across states.Dalready abolished in most states. The coda is considered to be Find the measure of each angle indicated. HELPPP PLEASE About the story the good body by eve ensler why does the narrator feel that way about her body whats 5 + 4/23 x -34 Divide by ten is..... P.s. i have to show my work sooooooo..... URGENT!!! HELP!!!! Identify the graphed linear equation? The Sixth Amendment of the U.S. Constitution guarantees the right to which of the following? A. protection of property B. a speedy and public trial C. the right to peaceably assemble D. the right to bear arms Carl Cornfield has been wondering whether he should plant white corn this year. He decides to sample 100 customers. 38% say they would purchase white corn. Carl wants to have a 95% confidence interval for this proportion.The confidence interval is from 33% to 43% (to the nearest percent).TrueFalse Why do scientists believe that a human can more quickly crack the code for protein design than a computer? 2. In writing the Declaration of Independence, Thomas Jefferson was influenced most by John Lockes idea ofA. the rights of the accusedB. natural rightsC. the right to privacyD. due process of law3. Which important reason for the American victory in the Revolutionary War is missing from the chart?A. aid from foreign nationsB. control of railroads and canalsC. naval superiority of the thirteen coloniesD. greater number of Indian allies4. The main criticism of the Articles of Confederation was that they failed toA. provide adequate powers for the central governmentB. prevent the development of military ruleC. allow for the admission of new statesD. limit the powers of the president ill give you brainliest for the correct answer if x^3+ax^2-18x+b = (x+5)(x-4)(x+2) what is a and b Charlie bought 2 3/4 pounds of pears for $0.76 per pound and 2 3/4 pounds of grapes for $1.40 per pound. How much money in dollars and cents did charlie pay for the pears and grapes. The height h of a square pyramid can be determined from the equation h = l2(s2)2 , where l is the slant height of the pyramid and s is the side length of the square base. What is the slant height l of the square pyramid shown? URGENTYou are an art director working for a feature film studio. Create a set for an interior scene of your choosing. Write a description of your scene to give to the principal production team. Include details that an art director would focus time and energy on. Include other production team members with whom you would collaborate. Your description should be at least 150 words. What is the coefficients of x4 in the expansion of (1+x)4(1+2x)3. Read the passage.In this year came dreadful forewarnings over the land of Northumbria, terrifying the people most woefully: these were immense sheets of lightning and whirlwinds, and fiery dragons were seen flying through the sky. . . . And not long after . . . the harrowing inroads of heathen men destroyed the church of God in Lindisfarne.The Anglo-Saxon Chronicle, 800 CEWhat is the central idea of the passage?Dragons attacked Northumbria.Northumbria was attacked by wind.Sheets of lightning terrified the Northumbrian people.The people of Northumbria were terrified by the heathen men who are i