Need; Hypotheses: Test statistic and value: P-value: andConclusion:
A) Past sales records indicate that sometimes there is a largedifference between the selling prices that different sales reps areable to negotiate for robots. As sales manager, you decide torandomly select four sales over the past year for each of yourthree sales reps and observe the actual selling price of therobots. The following table shows the amounts at which the robotssold in thousands of dollars. Based on these data, can you concludethat there is a difference between the mean selling prices forthese three salespeople at a level of significance of 0.05? Assumethat the three population distributions are approximately normalwith equal population variances.
Selling Prices of Robots (in thousands of dollars) |
Salesperson 1 | Salesperson 2 | Salesperson 3 |
10 | 11 | 11 |
14 | 16 | 13 |
13 | 14 | 12 |
12 | 15 | 15 |
