The monthly auto insurance premiums in dollars of a sample o
The monthly auto insurance premiums, in dollars, of a sample of 3 types of automobiles are given in the table. (You may assume that all samples are simple random samples.)
a. With .05 significance, test the claim that the mean monthly insurance premiums for all 3 vehicle types is the same. Use your calculator AND SHOW COMMANDS.
b. Use the sign test to test the claim that the median monthly insurance premium for an SUV is greater than $65. Use .05 significance.
c. Use the sign test to test the claim that the median monthly insurance premium for an SUV is less than $65. Use .05 significance.
| SUV | 63 | 59 | 70 | 60 | 65 | 58 | 61 | 63 | 64 | 61 |
| Compact | 71 | 73 | 65 | 72 | 77 | 83 | 77 | |||
| Truck | 52 | 57 | 91 | 61 | 53 | 65 | 72 |
Solution
