Reference no: EM132518722

For each hypothesis test, do each of the following:

a) State the hypotheses and identify the claim.

b) Find the critical value. (Or - Compute the test value.)

c) Compute the test value. (Or - Find the p-value.)

d) Make the decision.

e) Answer the research question.

1. In a New York modeling agency, a researcher wishes to see if the average height of female models is really less than 67 inches, as the chief claims. A random sample of 20 models has an average height of 65.8 inches. The standard deviation of the sample is 1.7 inches. At α=0.05, is the average height of the models really less than 67 inches? Use the p-value method.