MBA413, week 11, 1 Week 11: Comparisons Involving Means Interval Estimate of 1 2 : Large Sample Starting annul salaries for business school graduates majoring in finance and management information systems (MIS) were collected in two independent random samples. Use the following data to develop a 95% confidence interval estimate of the difference between the starting salaries for the two majors. Exercise 1: Finance MIS n1 60 n2 50 x1 $43,200 x2 $46,500 s1 $2,100 s2 $2,600 Exercise 3: Hypothesis Test about 1 2 : Large Sample Refer to the standing salary statistics in Exercise 1. Using = 0.10, test to determine if the average starting salary for an MIS graduate is $4,000 more than the starting salary for a finance graduate. Use both the test statistic and p-value approaches to hypothesis testing. (Hint: the null hypothesis is : H 0 : 1 2 $4,000, where 1 is the average starting salary of MIS graduates.)