Question
Please advise the value of the test stastic & p value A sample of 47 observations is selected from a normal population. The sample mean
Please advise the value of the test stastic & p value
A sample of 47 observations is selected from a normal population. The sample mean is 31, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. |
H0 : 30 |
H1 : > 30 |
a. | Is this a one- or two-tailed test? | ||||
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b. | What is the decision rule? (Round your answer to 3 decimal places.) |
(Click to select)RejectDo not rejectH0, when z > |
c. | What is the value of the test statistic? (Round your answer to 2 decimal places.) |
Value of the test statistic |
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d. | What is your decision regarding H0? | ||||
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There is (Click to select)insufficientsufficientevidence to conclude that the population mean is greater than 30. |
e. | What is the p-value? (Round your answer to 4 decimal places.) |
p-value |
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