Question: Consider the following hypothesis test: H0: 20 Ha: < 20 A sample of 50 provided a sample mean of 19.4. The population

Consider the following hypothesis test:

H0: μ ≥ 20

Ha: μ < 20

A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.

a. Compute the value of the test statistic.

b. What is the p-value?

c. Using α = .05, what is your conclusion?

d. What is the rejection rule using the critical value? What is your conclusion?

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