An airplane claims that the typical flying time between two

An airplane claims that the typical flying time between two cities is 56 minutes.

a) Formulate a test of hypotheses with the intent of establishing that the population mean

flying time is different from the published time of 56 minutes.

b) If the true mean is 50 minutes, what error can be made? Explain your answer in the

context of the problem.

c) What error could be made if the true mean is 56 minutes?