A compute the value of the test statistic b determine the

Question

Consider the following hypotheses test.

H₀: μ ≥ 80

H_a: μ < 80

A sample of 121 provided a sample mean of 77.3. The population standard deviation is known to be 16.5.

a. Compute the value of the test statistic.

b. Determine the p-value; and using α = .063, test the above hypotheses.

c. Using the critical value approach and α = .063, test the hypotheses.