Question 1 Twenty people participate in a weight-loss program for two months. Their weights after the two months are compared to their starting weights. What kind of mean difference might we expect if the null hypothesis is true for a paired-samples t test? O weight loss, indicating that the program does not work no change in weight or weight gain, indicating that the program does not work a negative mean difference, indicating significant weight loss a loss of pounds, on average, showing the effectiveness of the program

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question 1
Twenty people participate in a weight-loss program for two months. Their weights
after the two months are compared to their starting weights. What kind of mean
difference might we expect if the null hypothesis is true for a paired-samples t test?
weight loss, indicating that the program does not work
no change in weight or weight gain, indicating that the program does not work
a negative mean difference, indicating significant weight loss
a loss of pounds, on average, showing the effectiveness of the program
Transcribed Image Text:Question 1 Twenty people participate in a weight-loss program for two months. Their weights after the two months are compared to their starting weights. What kind of mean difference might we expect if the null hypothesis is true for a paired-samples t test? weight loss, indicating that the program does not work no change in weight or weight gain, indicating that the program does not work a negative mean difference, indicating significant weight loss a loss of pounds, on average, showing the effectiveness of the program
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