Consider the following hypotheses test.

H₀:80

H_a:<80

A sample of 121 provided a sample mean of 77.3. Thepopulationstandard deviation is known to be 16.5.

a.

Compute the value of the test statistic.b.

Determine thep-value; and using= .063, test the above hypotheses.c.

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