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What is the negative critical region? Give your answer to two decimal places. Z < What is the positive critical region? Give your answer to two decimal places. z > What is the test statistic? Give your answer to two decimal places. z = Do we reject or fail to reject the null hypothesis? OReject Ho OFail to reject Ho

What is the negative critical region? Give your answer to two decimal places. Z < What is the positive critical region? Give your answer to two decimal places. z > What is the test statistic? Give your answer to two decimal places. z = Do we reject or fail to reject the null hypothesis? OReject Ho OFail to reject Ho

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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There are several sections of Statistics; some in the morning and some in the afternoon. We randomly select n1 40 from the morning section and 44 from the afternoon section. The averages n2 of their scores are X1 76.3 for the morning section and X, = 71.9 for the afternoon section. The known standard deviations of their scores are 01 12.05 for the morning section and 02 13.06 for the afternoon section. Test the claim that the average for all students in the morning and afternoon section is the same. Use a a = 0.05 significance level. a. What is the negative critical region? Give your answer to two decimal places. z < b. What is the positive critical region? Give your answer to two decimal places. z > c. What is the test statistic? Give your answer to two decimal places. z = d. Do we reject or fail to reject the null hypothesis? OReject Ho OFail to reject Họ
Transcribed Image Text:There are several sections of Statistics; some in the morning and some in the afternoon. We randomly select n1 40 from the morning section and 44 from the afternoon section. The averages n2 of their scores are X1 76.3 for the morning section and X, = 71.9 for the afternoon section. The known standard deviations of their scores are 01 12.05 for the morning section and 02 13.06 for the afternoon section. Test the claim that the average for all students in the morning and afternoon section is the same. Use a a = 0.05 significance level. a. What is the negative critical region? Give your answer to two decimal places. z < b. What is the positive critical region? Give your answer to two decimal places. z > c. What is the test statistic? Give your answer to two decimal places. z = d. Do we reject or fail to reject the null hypothesis? OReject Ho OFail to reject Họ
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