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populations to complete the following: (8 points)Population 1Population 2Sample Size (n)400600Number of “yes”300426a.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.d.Use the above data to construct a 95% confidence interval for p1- p2
2. Use the data in BUSI1013 Bank Dataset.xlsx(from Unit 1 Exercise Question 2) to answer this question. (4 points each; 8 Points in total)a.Perform a statistical test to see whether the proportion of members who would recommend the Bank to their family and friends have increased because of the change.