a. Chapter 7, p. 344, Section 7.1, problems: 32,37 32. ER Visits A hospital spok

Question

a.   Chapter 7, p. 344, Section 7.1, problems: 32,37

32.ER Visits A hospital spokesperson statesthat 2% of emergency room visits by college undergraduates are foralcohol-related health problems. Write sentences describing type Iand type II errors for a hypothesis test of the indicatedclaim.

37. LungCancer A government report claims the proportion oflung cancer cases that are due to smoking is 90%. Determine whetherthe hypothesis test for each claim is left-tailed, right-tailed, ortwo-tailed. Explain your reasoning.

Explanation / Answer

32. Type I error: a person who is in the ER for an alcohol-relatedhealth problem is deemed not to have an alcohol-related healthproblem Type II error: a person who is in the ER not for an alcohol-relatedhealth problem is deemed to have an alcohol-related healthproblem 37. The hypothesis test is two-tailed, because you want to the testthat the proportion is 90%, not more than 90% or less than 90%.

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