A snack-food chain runs a promotion in which shoppers are told that 1 in 4 kids’ meals include a prize. A father buys two kids’ meals, and neither has a prize. He concludes that because neither...

A snack-food chain runs a promotion in which shoppers are told that 1 in 4 kids’ meals include a prize. A father buys two kids’ meals, and neither has a prize. He concludes that because neither has a prize, the chain is being deceptive.

a. What are the null and alternative hypotheses?
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b. Describe a Type I error in this context.⁷

c. Describe a Type II error.⁸

d. What is the probability that the father has made a Type I error?
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