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12/6/2019Omodolapo Agbolade-OlasindeUnit 9 ExerciseInstructor: Albert Wong22.5/24
1. Consider this hypothesis test:H0: p1- p2= 0Ha: p1- p2> 0Here p1is the population proportion of “yes” of Population 1 and p2is the population proportion of “yes” of Population 2. Use the statistics data from a simple random sample of each of the two populations to complete the following: (8 points)Population 1Population 2Sample Size (n)400600Number of “yes”300426Sample proportion(Pbar)300/400 = 0.75426/600 = 0.71a.Compute the test statistic z.b.What is the p-value?c.Should H0be rejected? Use the p-value and a level of significance of 0.05 to justify your answer.