A sample of 37 observations is selected from a normal population. The sample mean is 21,...

A sample of 37 observations is selected from a normal population. The sample mean is 21, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.02 significance level.

H₀: μ ≤ 20

H₁: μ > 20

Is this a one- or two-tailed test?

One-tailed test

Two-tailed test

What is the decision rule?

Reject H₀ when z > 2.054

Reject H₀ when z ≤ 2.054

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

What is your decision regarding H₀?

Fail to reject H₀

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.)

Solutions

Expert Solution

One-tailed test

orchestra answered 1 year ago

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