(Please solve manually.)  Every April Americans andCanadians fill out their tax return forms. Many turn to taxpreparation companies to do this tedious job. The question arises,Are there differences between companies? In an experiment two ofthe largest companies were asked to prepare the tax returns of asample of 55 taxpayers. The amounts of tax payable were recorded.Can we conclude that company 1’s service results in higher taxpayable?
Company 1 | Company 2 |
12859 | 9449 |
6082 | 5694 |
8604 | 7457 |
9230 | 7725 |
10405 | 10163 |
12580 | 13954 |
5882 | 5846 |
7555 | 5666 |
8492 | 9293 |
10087 | 9167 |
7291 | 7430 |
9907 | 10178 |
10352 | 11333 |
8746 | 7170 |
6568 | 7943 |
10648 | 14047 |
4990 | 1069 |
10037 | 9873 |
10187 | 8185 |
11852 | 9683 |
10154 | 11126 |
9287 | 10291 |
8561 | 8979 |
10895 | 9468 |
6821 | 8422 |
8444 | 7213 |
9590 | 8596 |
10501 | 9544 |
8625 | 10534 |
13729 | 12985 |
11784 | 10150 |
5655 | 4675 |
10696 | 8594 |
11538 | 15400 |
8183 | 7262 |
8647 | 8008 |
6547 | 4402 |
8067 | 6818 |
4051 | 3878 |
10201 | 7279 |
7145 | 6374 |
13944 | 15481 |
10870 | 7491 |
9901 | 4695 |
5334 | 8507 |
9516 | 9712 |
7782 | 5108 |
6446 | 5291 |
7519 | 7249 |
10070 | 6548 |
11815 | 9631 |
6069 | 7798 |
12073 | 13252 |
6466 | 7274 |
9782 | 11055 |
