TV safety, revisited. The manufacturer of the metal TV stands in Exercise 43 is thinking of revising its safety test.

a) If the company’s lawyers are worried about being sued for selling an unsafe product, should they increase or decrease the value of a? Explain.

b) In this context, what is meant by the power of the test?

c) If the company wants to increase the power of the test, what options does it have? Explain the advantages and disadvantages of each option.