A sample of 33 observations is selected from a normal population. The sample mean is 25, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.02 significance level. H0: μ ≤ 23 H1: μ > 23 a. Is this a one- or two-tailed test? multiple choice 1 One-tailed test Two-tailed test
A sample of 33 observations is selected from a normal population. The sample mean is 25, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.02 significance level.
H0: μ ≤ 23
H1: μ > 23
a. Is this a one- or two-tailed test?
multiple choice 1
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One-tailed test
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Two-tailed test
b. What is the decision rule?
multiple choice 2
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Reject H0 when z > 2.054
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Reject H0 when z ≤ 2.054
c. What is the value of the test statistic? (Round your answer to 2 decimal places.)
d. What is your decision regarding H0?
multiple choice 3
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Reject H0
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Fail to reject H0
e-1. What is the p-value? (Round your answer to 4 decimal places.)
e-2. Interpret the p-value? (Round your final answer to 2 decimal places.)
There is a _______ % chance of finding a z value this large by 'sampling error' when H0 is true.
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