Discussion:
Q: A researcher has observed independent samples of females and males, recording how long each person took to complete his or her shopping at a local mall. The respective times, in minutes. Using the 0.025 level of significance in a one-tail test, would females appear to exhibit more variability than males in the length of time shopping in this mall?
| females |
males |
| 26 |
33 |
| 35 |
40 |
| 75 |
50 |
| 63 |
32 |
| 36 |
28 |
| 71 |
39 |
| 54 |
32 |
| 68 |
33 |
| 37 |
31 |
| 48 |
36 |
| 42 |
26 |
| 43 |
37 |
| 73 |
38 |
| 55 |
21 |
| 47 |
39 |
| 71 |
48 |
| 27 |
38 |
| 56 |
36 |
| 37 |
59 |
| 25 |
59 |
| 88 |
53 |
| 42 |
59 |
| 33 |
35 |
| 66 |
38 |
| 45 |
24 |
| 53 |
28 |
| 46 |
45 |
| 74 |
28 |
| 58 |
23 |
| 51 |
15 |
| 58 |
61 |
| 48 |
31 |
| 48 |
17 |
| 42 |
55 |
| 55 |
31 |
| 50 |
55 |
| 61 |
37 |
| 28 |
36 |
| 41 |
20 |
| 58 |
48 |