Question

A sample of 31 observations is selected from a normal population. The sample mean is 23, and the population standard deviation is 2. Conduct the following test of hypothesis using the 0.10 significance level.

H₀ : μ ≤ 22

H₁ : μ > 22

A.) Is this a one- or two-tailed test?

B.) What is the decision rule?

C.) What is the value of the test statistic? (Round your answer to 2 decimal places.)

D.) What is your decision regarding H0?

E-1) What is the p-value? (Round to 4 decimal places)

E-2) Interpret the p-value? (round final answer to 2 decimal places)

there is a ____% chance of finding a z-value this large by "sampling error" when H0 is true.

Answer 1