11/2/2017CourseWare…5/6Question 11Your answer is CORRECT.When solving for the sample size required to estimate pto within a particular margin of error, under whatcircumstances do we use p̂ = .5?
Question 12Your answer is CORRECT.Television viewers often express doubts about the validity of certain commercials. In an attempt to answer their critics,a large advertiser wants to estimate the true proportion of consumers who believe what is shown in commercials.Preliminary studies indicate that about 40% of those surveyed believe what is shown in commercials. What is theminimum number of consumers that should be sampled by the advertiser to be 85% confident that their estimate willfall within 2% of the true population proportion?
Question 13Your answer is CORRECT.