Discuss below:
Q: For independent samples of customers of Internet providers A and B, the ages are as listed. Using the 0.05 level of significance in a nondirec-tional test, examine whether the variation in ages could be the same for customers of the two providers.
| Provider A |
Provider B |
| 28 |
47 |
|
| 32 |
45 |
|
| 29 |
41 |
|
| 34 |
47 |
|
| 30 |
60 |
|
| 38 |
44 |
|
| 40 |
41 |
|
| 40 |
23 |
|
| 39 |
21 |
|
| 35 |
30 |
|
| 30 |
38 |
|
| 29 |
39 |
|
| 22 |
37 |
|
| 36 |
40 |
|
| 35 |
52 |
|
| 29 |
28 |
|
| 35 |
39 |
|
| 34 |
29 |
|
| 32 |
46 |
|
| 48 |
36 |
|
| 38 |
21 |
|
| 35 |
44 |
|
| 25 |
55 |
|
| 43 |
55 |
|
| 42 |
36 |
|
| 42 |
36 |
|
| 44 |
48 |
|
| 34 |
31 |
|
| 34 |
37 |
|
| 40 |
48 |
|
| 38 |
28 |
|
| 38 |
44 |
|
| 36 |
29 |
|
| 39 |
43 |
|
| 30 |
45 |
|
| 42 |
43 |
|
| 26 |
40 |
|
| 41 |
43 |
|
| 33 |
40 |
|
| 28 |
46 |
|
| 31 |
39 |
|
| 36 |
29 |
|
| 21 |
46 |
|
| 39 |
37 |
|
| 39 |
42 |
|
| 27 |
40 |
|
| 43 |
41 |
|
| 31 |
35 |
|
| 30 |
37 |
|
| 31 |
39 |
|