question 3 statistics

Time left 3:55:28 QUESTION 2 (25 points): The manager of a large organization would like to compare the effectiveness of two methods (A and B) of training new salespersons. The company randomly chooses 120 new salespersons and divides them in two groups, 60 people in each group. The first group uses training method A and the second group uses training method B. At the end of the year the manager examines the performance of the salespersons in these two groups and sees that in the group that had used training method A, the average weekly sales were E1800, with a standard deviation (290, while in the group that had used method B the average weekly sales were E1600 with a standard deviation of (250. Test at the 1% level of significance, if method A is more effective that method B for training new salespersons