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A "water diet" requires you to drink one cup of water every hour from the time you get up until you go to bed, but otherwise allows you to eat whatever you like. Four adult volunteers agree to follow the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights (in pounds) are: Subject Weight before diet Weight after diet A B D 180 125 240 150 170 130 215 152 Which of the following conditions must be met in order to use at procedure on these paired data? O The distribution of before-diet weights must be approximately Normal. The distribution of differences (before – after) must be approximately Normal. O The distribution of both before-diet weights and after-diet weights must be approximately Normal. The distribution of both before-diet weights and after-diet weights must be approximately Normal. All three distributions of weight (before-diet, after-diet, and the differences) must be approximately Normal.

A "water diet" requires you to drink one cup of water every hour from the time you get up until you go to bed, but otherwise allows you to eat whatever you like. Four adult volunteers agree to follow the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights (in pounds) are: Subject Weight before diet Weight after diet A B D 180 125 240 150 170 130 215 152 Which of the following conditions must be met in order to use at procedure on these paired data? O The distribution of before-diet weights must be approximately Normal. The distribution of differences (before – after) must be approximately Normal. O The distribution of both before-diet weights and after-diet weights must be approximately Normal. The distribution of both before-diet weights and after-diet weights must be approximately Normal. All three distributions of weight (before-diet, after-diet, and the differences) must be approximately Normal.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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This scenario will be used for this question and the next one. A "water diet" requires you to drink one cup of water every hour from the time you get up until you go to bed, but otherwise allows you to eat whatever you like. Four adult volunteers agree to follow the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights (in pounds) are: Subject Weight before diet Weight after diet A B D 180 125 240 150 170 130 215 152 Which of the following conditions must be met in order to use at procedure on these paired data? O The distribution of before-diet weights must be approximately Normal. The distribution of differences (before – after) must be approximately Normal. O The distribution of both before-diet weights and after-diet weights must be approximately Normal. The distribution of both before-diet weights and after-diet weights must be approximately Normal. All three distributions of weight (before-diet, after-diet, and the differences) must be approximately Normal.
Transcribed Image Text:This scenario will be used for this question and the next one. A "water diet" requires you to drink one cup of water every hour from the time you get up until you go to bed, but otherwise allows you to eat whatever you like. Four adult volunteers agree to follow the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights (in pounds) are: Subject Weight before diet Weight after diet A B D 180 125 240 150 170 130 215 152 Which of the following conditions must be met in order to use at procedure on these paired data? O The distribution of before-diet weights must be approximately Normal. The distribution of differences (before – after) must be approximately Normal. O The distribution of both before-diet weights and after-diet weights must be approximately Normal. The distribution of both before-diet weights and after-diet weights must be approximately Normal. All three distributions of weight (before-diet, after-diet, and the differences) must be approximately Normal.
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