Question: A sample of 39 observations is selected from a normal population. The sample mean is 31, and the population standard deviation is 5. Conduct
A sample of 39 observations is selected from a normal population. The sample mean is 31, and the population standard deviation is 5. Conduct the following test of hypothesis using the 0.05 significance level. H: p 30 H:30 a. Is this a one- or two-tailed test? O "One-tailed"-the alternate hypothesis is greater than direction. O"Two-tailed"-the alternate hypothesis is different from direction. b. What is the decision rule? (Round your answer to 2 decimal places.) HO, when > c. What is the value of the test statistic? (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H? O Reject O Do not reject There is evidence to conclude that the population mean is greater than 30. e. What is the p-value? (Round your answer to 4 decimal places.)
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