A) What is the alternative hypothesis? a. The population mean is equal to 7.2 points. b. The population mean is greater than 7.2 points. c. The population mean is smaller than 7.2 points. B) What Z-score(s) corresponds to the alpha level? In other words, at what point(s) would we reject the null hypothesis? C) What is the test statistic?
A) What is the alternative hypothesis? a. The population mean is equal to 7.2 points. b. The population mean is greater than 7.2 points. c. The population mean is smaller than 7.2 points. B) What Z-score(s) corresponds to the alpha level? In other words, at what point(s) would we reject the null hypothesis? C) What is the test statistic?
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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Question
A) What is the alternative hypothesis?
a. The population mean is equal to 7.2 points.
b. The population mean is greater than 7.2 points.
c. The population mean is smaller than 7.2 points.
B) What Z-score(s) corresponds to the alpha level? In other words, at what point(s) would we reject the null hypothesis?
C) What is the test statistic?
![A researcher wants to know if a treatment significantly
increases the well being of someone with depression. The
average person with depression scores a 7.2 on a well being
scale with a SD of 1.4 points. The researcher administers the
treatment to 25 clients for a month and finds their well being at
the end to be 7.7. Assume an alpha level of .05.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa2a79f3c-9d5f-475d-8512-37c872933c1c%2Ff04bcc20-9cbf-4541-8862-455c8466160c%2Ftym9aa_processed.png&w=3840&q=75)
Transcribed Image Text:A researcher wants to know if a treatment significantly
increases the well being of someone with depression. The
average person with depression scores a 7.2 on a well being
scale with a SD of 1.4 points. The researcher administers the
treatment to 25 clients for a month and finds their well being at
the end to be 7.7. Assume an alpha level of .05.
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