A test is made of Ho: µ=20 versus H: µ±20. A sample of size n=58 is drawn, and x= 18. The population standard deviation is o=8. (a) Compute the value of the test statistic z. (b) Is Ho rejected at the a=0.05 level? (c) Is Ho rejected at the a=0.01 level? Part: 0/ 3 Part 1 of 3 (a) Compute the value of the test statistic. Round the answer to at least two decimal places. 7 =

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A.) Compute the value of the test statistic Z

B.) Is H rejected at a=0.05?

C.) is H rejected at a= 0.01?

A test is made of Ho: µ=20 versus H: µ±20. A sample of size n=58 is drawn, and x= 18. The population standard deviation is o=8.
(a) Compute the value of the test statistic z.
(b) Is Ho rejected at the a=0.05 level?
(c) Is Ho rejected at the a=0.01 level?
Part: 0/ 3
Part 1 of 3
(a) Compute the value of the test statistic. Round the answer to at least two decimal places.
7 =
Transcribed Image Text:A test is made of Ho: µ=20 versus H: µ±20. A sample of size n=58 is drawn, and x= 18. The population standard deviation is o=8. (a) Compute the value of the test statistic z. (b) Is Ho rejected at the a=0.05 level? (c) Is Ho rejected at the a=0.01 level? Part: 0/ 3 Part 1 of 3 (a) Compute the value of the test statistic. Round the answer to at least two decimal places. 7 =
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