7.Professor Chauvet has 6 snake plants at her home. Two are small, two are medium, and two are large. She wants to see if the plants will grow taller if they are given water from her fish tank. She puts all the plants in her bay window at home so they receive equal amounts of sunlight. For the two small plants, she flips a coin to determine which one will get the water from the fish tank. She does the same for the medium, and large plants. She waters them this way weekly for 10 weeks. After 10 weeks she compares the difference in growth for each set of 2 plants. Which of the following is the best description of the method she is using for data collection?
(A)An observational study
(B)A double-blind observational study
(C)An experiment with a completely randomized design
(D)An experiment with a randomized block design
(E)An experiment with a matched-pairs design​

Answers

Answer 1

Answer:

E. An Experiment with a matched-pairs design.

Explanation:

The experiment involves comparing similar units which are paired together.


Related Questions

James was the lead in the school play. It was opening night. Mr. Ramirez, the director, asked James if he was ready to go on and reminded him about a few last-minute changes in the script. A number of thoughts and feelings came over James as the curtain went up. James became anxious when he saw all the faces of the audience members. Then he saw his mother, who is a professional actress, sitting in the front row. James could not relax. At that instant, he saw his psychology teacher in the audience. He knew that he needed to use the concepts learned in her class to make sense of these thoughts, feelings, and surroundings.
Describe how each of the following concepts might help James give a strong performance.
State-dependent memory
Arousal theory
Positive reinforcement
Selective attention
Imagery
Social facilitation
Sensory adaptation

Answers

Answer:

Check below for the answer and explanations

Explanation:

State-dependent memory: is the process of remembering things because they happen when you were in a state that is similar to your current state. Before the opening night, James would have gone through series of rehearsals, it will be easy for him to recollect the things he said or did during the rehearsal and apply same in the opening night.

Arousal theory: This theory explains that people tend to have a better performance when they are psychologically motivated. James felt motivated when he saw his psychology teacher in the audience. This motivation will enhance is performance.

Positive reinforcement: James motivated himself by wanting to use the concept learnt in his psychology class to have a positive thought about the surrounding atmosphere. This is a positive reinforcement because James felt motivated after this consideration.

Selective attention: This is the process of focusing only on relevant information or object. James paid more attention to those whose presence can aid his performance. He did not have to set his gaze on every member of the audience.

Imagery: In this context, imagery is the use of mental, imaginary pictures to influence one's thought process. As James is on the stage, there should be a mental picture of when he was taking similar roles during the rehearsals, this will help him perform better.

Social facilitation: The presence of a large audience aids the performance of some people. They tend to perform better in the presence of crowd. James can utilize the advantage of the cheers and the applause he receives from the audience for a better performance.

Sensory adaptation: As James spends more time outside performing, his senses tend to adapt to that atmosphere and the initial fright and timidity will disappear. At this stage, he begins to perform incredibly well.

State dependence memory is the process of remembering things due to what happened. They take place when you are in a state similar to the current state.

Arousal theory suggests that people are driven to take actions that tend to maintain an optimal level of psychological arousal.  Selective attention is a process that allows the individual to focus on a specific topic, or input for further processing. Imagery is any visual figurative language that evokes a mental image. Social facilitation is the improvement or the decrease of performance when working together with other people. Sensory adaptation is the reduction of the sensitivity to stimus after long exposure.

Learn more about the lead in the school play. It was opening night.

brainly.com/question/19145401.

8. Candidate A and Candidate B are running for president. You are planning a survey to determine what proportion of registered voters plan to vote for Candidate A (p). You will contact a random sample of registered voters. You want to estimate p with 99% confidence and a margin of error no greater than 0.01. What is the minimum number of registered voters you will need to survey in order to meet these requirements?
(A)97
(B)166
(C)6,766
(D)9,604
(E)16,590​

Answers

Answer:

The correct answer is (E).

The minimum sample size of registered voters that are needs to be surveyed in order to meet these requirements is 16590 registered voters.

What is the required sample size?

The sample size, n, can be calculated using the formula below:

[tex]n = \frac{z^{2}×p(1-p)}{(\frac{ε}{2}) ^{2}}[/tex]

where:

z = is the z scoreε is the margin of errorpis the population proportion

For the data provided:

z for 99% confidence = 2.58

ε/2 = 0.005

p = 0.5

Substituting the values:

[tex]n = \frac{2.58^{2}×0.5(1-0.5)}{0.005^{2}} = 16641[/tex]

Therefore, the minimum sample size of registered voters that are needs to be surveyed in order to meet these requirements is 16590 registered voters.

Learn more about sample size at: https://brainly.com/question/24084761

#SPJ2

YOU WILL GET BRAINLIEST!! What could help a country move from Stage 1 to Stage 2 of the demographic
transition?
- Instituting population restrictions
-increased immigration
-The diffusion of contraceptives
-better sanitation
-Improving education for women

Answers

Answer:

i would think population restrictions  

Explanation

stage 2 is characterized by a rapid decrease in a country’s death rate so the total population of a country in Stage 2 will rise

18. What is the correct test statistic and conclusion? ​

Answers

Answer:

A

Explanation:

It is A

3a. Are we able to see and hear
everything? Explain why or why not

Answers

Answer:

No

Explanation:

Because there are many thing u don't see like what the inside of a person is and u can't hear stuff far away.

Hope this helps!!

High-frequency hearing loss occurs when the tiny hair-like sensory hearing cells in your cochlea (inner ear) are damaged. These hair cells, known as stereocilia, are responsible for translating the sounds your ears collect into electrical impulses, which your brain eventually interprets as recognizable sound

1.Sharon is a good student who enjoys statistics. She sets a goal for herself to do well enough compared to her peers so that her standardized score on her Statistics final is equal to her percentile rank (written as a decimal) among her classmates. What goal did she set for herself?
(A)0.25
(B)0.78
(C)1.09
(D)2.25
(E)2.41​

Answers

Answer: B

Explanation: 0.78

Other Questions
How to make isopropyl alcohol 1: which equation represents a linear function? a y= 4 x +1 b y=x2+2 c y=3 x+1 d y=- 2 3 x- 1 2 Deforestation is a major problem in the Amazon Rainforest. Which American state is about the size of the area of theAmazon that was cleared between 1990 and 2010?A. ArizonaB. MaineC. TexasD. MontanaPlease select the best answer from the choices provided What role do primaries play in the local, state, and federal A cone with height of 6 feet and volume of 86 feet cubed.Answer the questions to find the base area of the cone.Which equation substitutes the given values into the formula for the corresponding variables In most mirrors, the virtual image appears to come from behind the mirror. True False The best order of steps for conflict resolution is to ? what is 7/4 - (-1/4) A turntable has a moment of inertia of 3.00 x 10-2 kgm2 and spins freely on a frictionless bearing at 25.0 rev/min. A 0.300 kg ball of putty is dropped vertically on the turntable and sticks at a point 0.10m from the center. The total moment of inertia of the system increases, and the turntable slows down. But by what factor does the angular momentum of the system change after the putty is dropped onto the turntable In the great energy Debate Which of the following could be added to selection one in order to respond to the claims found in selection two A. The number of acres needed to create a usable wind power plantB. The number of wind power plants that are already in use in the United States C. The number of birds and bats that are claimed by new wind turbines during any given yearD. The number of trees that need to be planted in order to fill one acre of forest land durning any given year Determine What is the efficiency of a machine whose work output is 4 joules, and whose work input is 10 joules? can someone helpp ?? the hose is 2 inches in diameter. What circumference does the plug need to be? remember to type just a number Lila has gained a lot of weight recently she works out and watches her intake but she's still gaining weight when she visited the doctor she told her that she had a problem with one of her endocrine glands which gland would most likely have a tissue with maintaining the breakdown of foods The process of cellular respiration takes place mostly in the _______. A. lysosomes B. nucleus C. mitochondria D. endoplasmic reticulum How does Hinduism encourage individual needs? Christian and Megan want to purchase a new car. The car has a base price of $16,700, options totaling $1,095, and a destination charge of $325. They read in a consumer magazine that the dealer's cost for the car is 90 percent of the base price and 87 percent of the options price. What should they estimate as the dealer's cost?1 point$15,764.40$15,806.65$16,275.15$16,307.65 Multiply(2x + 4)(2x - 4) PLS I MARK BRAINLIEST I ONLY HAVE 30 MINS LEFT You notice that another cupboard door is in the shape of a square that is divided into two isosceles triangles. You measure the height of the cupboard to be 16 "2" /"3" inches. What is the area of one of the triangles shown on the face of the cupboard door? Show your work AND I NEED TO KNOW HOW YOU DID IT IT SAYS SHOWYOUR WORK In general, how long does it take to accomplish a long-term goal?A.a few days to a weekB.a few weeks to a monthC.a few months to a yearD.more than a yearResetNext