Five people, who were suffering from depression, attended 10 one-hour counseling sessions. The following table gives the depression scores (on a scale of 1 to 10) of these five people before and after attending the counseling sessions. Note that a higher score means that a person has a worse case of depression. Before After 7.5 4.3 6.4 5.1 7.1 6.2 9.7 6.9 7.8 7.2 The null hypothesis is the mean of the population paired differences is equal to zero (i.e., attending the counseling sessions does not change the depression score). The alternative hypothesis is that the mean of the population paired differences is not equal to zero (i.e., attending the counseling sessions does change the depression score). The significance level is 5%. 4.1. By hand, what is the mean of the sample paired differences (d), rounded to two decimal places? 4.2. What is the standard deviation of the paired differences (oa) , rounded to three decimal places? 4.3. By hand, what is the standard deviation of the mean of the sample paired differences (sa), rounded to three decimal places?

Five people, who were suffering from depression, attended 10 one-hour counseling sessions. The following table gives the depression scores (on a scale of 1 to 10) of these five people before and after attending the counseling sessions. Note that a higher score means that a person has a worse case of depression. Before After 7.5 4.3 6.4 5.1 7.1 6.2 9.7 6.9 7.8 7.2 The null hypothesis is the mean of the population paired differences is equal to zero (i.e., attending the counseling sessions does not change the depression score). The alternative hypothesis is that the mean of the population paired differences is not equal to zero (i.e., attending the counseling sessions does change the depression score). The significance level is 5%. 4.1. By hand, what is the mean of the sample paired differences (d), rounded to two decimal places? 4.2. What is the standard deviation of the paired differences (oa) , rounded to three decimal places? 4.3. By hand, what is the standard deviation of the mean of the sample paired differences (sa), rounded to three decimal places?

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Description: Five people, who were suffering from depression, attended 10 one-hour counseling sessions. Thefollowing table gives the depression scores (on a scale of 1 to 10) of these five people before andafter attending the counseling sessions. Note that a hig

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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