Use the following information to answer the questions: The hypothesis testingH0: = 100vs. Ha: 100. Random sample = 25 was collected and the mean was 90, and the sample standard deviation of 23. The population standard deviation is known and equal to 25.

This is a [ Select ] ["one tail test (or one side)", "two-tail test (or two sided)"] , because the population standard deviation is [ Select ] ["unknow", "known"] , a [ Select ] ["z-test", "t-test"] is calculated and equal [ Select ] ["2.00", "2.17", "-2.17", "1.96", "-2.00"] . The critical value at 5% is [ Select ] ["+/- 2.36", "+/-1.96", "+/- 2.00", "+/- 1.645"] and p-value equal to [ Select ] ["0.977", "0.0227", "0.0455", "0.025"] . Therefore, we [ Select ] ["Reject H0", "Fail to Reject H0"] .

For p-values use https://www.graphpad.com/quickcalcs/PValue1.cfm(Links to an external site.)