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3) Identify the critical value.

3) Identify the critical value.

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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answer part 3

25 versus H1: µ < 25. The population variance, o², is Suppose you perform the hypothesis test Ho: µ known. The sample size is n = 50. Assume the significance level is 0.005. Part 1: 1) Should you use z or t to find the critical value? Ot Part 2 of 4 Part 2: 2) Choose the correct critical region. O Reject Ho if z > za Reject Ho if z < Reject Ho if z > za O Reject Ho if z < Reject H, if z > za Reject Ho if z < Za or z > Za Reject Ho if z > zg O Reject Ho if z < Za or z 2 Za Reject Ho if z < Za Reject Ho if z < Zg or z > zg Reject Ho if z < Za O Reject H, if z < – zg or z 2 z Part 3 of 4 Part 3: 3) Identify the critical value. If using z, round to 2 decimals; if using t, round to 3 decimals. א
Transcribed Image Text:25 versus H1: µ < 25. The population variance, o², is Suppose you perform the hypothesis test Ho: µ known. The sample size is n = 50. Assume the significance level is 0.005. Part 1: 1) Should you use z or t to find the critical value? Ot Part 2 of 4 Part 2: 2) Choose the correct critical region. O Reject Ho if z > za Reject Ho if z < Reject Ho if z > za O Reject Ho if z < Reject H, if z > za Reject Ho if z < Za or z > Za Reject Ho if z > zg O Reject Ho if z < Za or z 2 Za Reject Ho if z < Za Reject Ho if z < Zg or z > zg Reject Ho if z < Za O Reject H, if z < – zg or z 2 z Part 3 of 4 Part 3: 3) Identify the critical value. If using z, round to 2 decimals; if using t, round to 3 decimals. א
Expert Solution
Step 1

Given that

Sample size n = 50

Level of significance = 0.005

And the test is left-tailed.

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