For Exercises 1–4, answer the questions: (a) Is this a one- or two-tailed test? (b) What is
the decision rule? (c) What is the value of the test statistic? (d) What is your decision
regarding H0? (e) What is the p-value? Interpret it.
1. A sample of 36 observations is selected from a normal population. The sample
mean is 49, and the population standard deviation is 5. Conduct the following test
of hypothesis using the .05 significance level.
H0: μ = 50
H1: μ ≠ 50
2. A sample of 36 observations is selected from a normal population. The sample
mean is 12, and the population standard deviation is 3. Conduct the following test
of hypothesis using the .01 significance level.
H0: μ ≤ 10
H1: μ > 10
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