MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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For #10 - 19: A researcher conducts an Independent-Measures study examining the effectiveness of a group exercise program on muscle strength at an assisted living facility for elderly adults. One group of residents is selected to participate in the new weight training program and a second group participates in a fitness walking group. After 8 weeks, the researcher records a strength score for each individual. The data are as follows: Here are some formulas and values to help: Pooled Variance (s?,) = 14 Strength Walking Group n = 28 Group n = 14 2 ,2 S(M,-M2) + M1 = 15 V n, n2 t = M1 - M2 / S (M1-M2) M2 = = 12 16. What if there was a smaller difference between the two groups? That is, if M1 = 14 and M2 = 12. Then, what is %3D your t-statistic?
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Transcribed Image Text:For #10 - 19: A researcher conducts an Independent-Measures study examining the effectiveness of a group exercise program on muscle strength at an assisted living facility for elderly adults. One group of residents is selected to participate in the new weight training program and a second group participates in a fitness walking group. After 8 weeks, the researcher records a strength score for each individual. The data are as follows: Here are some formulas and values to help: Pooled Variance (s?,) = 14 Strength Walking Group n = 28 Group n = 14 2 ,2 S(M,-M2) + M1 = 15 V n, n2 t = M1 - M2 / S (M1-M2) M2 = = 12 16. What if there was a smaller difference between the two groups? That is, if M1 = 14 and M2 = 12. Then, what is %3D your t-statistic?
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