An advertisement for a headache remedy claims that 90% or more of headache sufferers get relief if they use the remedy.A truth in advertisingagency is considering a suit for false advertising and obtains a sample of 100 individuals, which shows that 88 indicate that the remedy gave them relief.

(a) Using α = 0.10 can the suit be justified?

(b) Comment on the implications of a type I or a type II error in this problem.

(c) Suppose that the company manufacturing the remedy wants to conduct a promotional campaign that claims over 90% of the remedy users get relief from headaches.What would change in the hypotheses statements used in part (a)?

(d) What about the implications discussed in part (b)?

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