(Please solve manually.)Â Â Every April Americans and Canadians fill out their tax return forms. Many turn to...
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(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
(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 |
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