Question

A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 20 H1: μ > 20 Is this a one- or two-tailed test? multiple choice 1 "One-tailed"—the alternate hypothesis is in the greater direction. "Two-tailed"—the alternate hypothesis is different from the direction. What is the decision rule? (Round your answer to 3 decimal places.) What is the value of the test statistic? (Round your answer to 2 decimal places.) What is your decision regarding H0? multiple choice 2 Do not reject Reject e-1. What is the p-value? (Round your answer to 4 decimal places.) e-2. Interpret the p-value? (Round your answer to 2 decimal places.)

          A sample of 49 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.05 significance level.

H0: μ ≤ 20
H1: μ > 20

Is this a one- or two-tailed test?
multiple choice 1
"One-tailed"—the alternate hypothesis is in the greater direction.
"Two-tailed"—the alternate hypothesis is different from the direction.

What is the decision rule? (Round your answer to 3 decimal places.)

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

What is your decision regarding H0?
multiple choice 2
Do not reject
Reject

e-1. What is the p-value? (Round your answer to 4 decimal places.)

e-2. Interpret the p-value? (Round your answer to 2 decimal places.)

Added by Margarita G.

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