25 versus H1: µ < 25. The population variance, o?, 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 O Reject Ho if z < O Reject Ho if z > za Reject Ho if z < - za O Reject Ho if z > zg O Reject Ho if z < - za or z > za Reject Ho if z > zg Reject Ho if z < Za or z > Za O Reject Ho if z < – za O Reject Ho if z < or z > zs Reject Ho if z - Za O Reject Ho if z < - 2을 or z 2 2g VI

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Suppose you perform the hypothesis test Ho: µ = 25 versus H1: µ < 25. The population variance, o², is
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.
Reject Ho if z > za
Reject Ho if z < - zg
Reject Ho if z > za
O Reject Ho if z < - zg
Reject Ho if z > zg
Reject Ho if z <
Za or z > za
Reject Ho if z > za
Reject Ho if z <
Za or z 2 Za
O Reject Ho if z <
Za
Reject Ho if z <
- za or z > zs
O Reject Ho if z <
Za
Reject Ho if z < – zg or z 2 za
Transcribed Image Text:Suppose you perform the hypothesis test Ho: µ = 25 versus H1: µ < 25. The population variance, o², is 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. Reject Ho if z > za Reject Ho if z < - zg Reject Ho if z > za O Reject Ho if z < - zg Reject Ho if z > zg Reject Ho if z < Za or z > za Reject Ho if z > za Reject Ho if z < Za or z 2 Za O Reject Ho if z < Za Reject Ho if z < - za or z > zs O Reject Ho if z < Za Reject Ho if z < – zg or z 2 za
Expert Solution
Step 1

We have given that 

Sample size n=50 , mu=25 

Population variance are known

Level of significance = alpha = 0.005

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