Question
Column 1 Profit What was your profit? Column 2 Advertising How much money was spent on advertising in the financial year? Column 3 Employee How
Column 1 Profit What was your profit?
Column 2 Advertising How much money was spent on advertising in the financial year?
Column 3 Employee How many employees work at your business?
Column 4 Age How old is the company (in years)?
Column 5 Type Is the business privately held, publicly traded or a franchise?
(Private = 1, Public = 2, Franchise = 3)
Column 6 Location Where is the company? (1 = Parramatta CBD, 2 = Sydney CBD)
Question 1 (7 marks)
Test, at the 5% level of significance, whether the average profit differs between businesses located in Parramatta CBD or located in Sydney CBD.
[You may assume that the unknown population standard deviations for Parramatta and Sydney businesses are equal]
| 99 | |||||
| 2 | 3 | 4 | 5 | 6 | 7 |
| Profit | Advertising | Employee | Age | Type | Location |
| 14458 | 4897 | 7 | 6.3 | 2 | 1 |
| 10226 | 3967 | 1 | 2.6 | 1 | 1 |
| 23114 | 5558 | 20 | 13.5 | 3 | 2 |
| 11380 | 4115 | 2 | 3.7 | 1 | 1 |
| 15805 | 5259 | 8 | 7.3 | 2 | 2 |
| 9841 | 3932 | 1 | 2.4 | 1 | 1 |
| 12150 | 4273 | 3 | 4.2 | 1 | 1 |
| 16189 | 4451 | 10 | 7.7 | 2 | 2 |
| 13689 | 4747 | 5 | 5.5 | 1 | 1 |
| 13496 | 4319 | 5 | 5.4 | 1 | 1 |
| 16189 | 5233 | 10 | 7.7 | 2 | 2 |
| 14266 | 4841 | 7 | 6 | 2 | 1 |
| 14458 | 4373 | 7 | 6.1 | 2 | 1 |
| 12535 | 4746 | 3 | 4.6 | 1 | 1 |
| 16382 | 5294 | 10 | 7.8 | 3 | 2 |
| 11957 | 4586 | 3 | 4.1 | 1 | 1 |
| 14843 | 4911 | 8 | 6.6 | 2 | 1 |
| 15035 | 4423 | 8 | 6.7 | 2 | 2 |
| 17536 | 5222 | 11 | 8.8 | 3 | 2 |
| 14458 | 4463 | 7 | 6.2 | 2 | 1 |
| 10803 | 3880 | 1 | 2 | 1 | 1 |
| 13689 | 4499 | 5 | 5.5 | 2 | 1 |
| 13881 | 4760 | 7 | 5.8 | 2 | 1 |
| 11573 | 4242 | 2 | 3.7 | 1 | 1 |
| 17921 | 4744 | 11 | 9.1 | 3 | 2 |
| 16766 | 4813 | 10 | 8.2 | 3 | 2 |
| 18690 | 5264 | 13 | 9.8 | 3 | 2 |
| 15997 | 4611 | 10 | 7.6 | 2 | 2 |
| 16189 | 5027 | 10 | 7.6 | 2 | 2 |
| 15035 | 4404 | 8 | 6.7 | 2 | 2 |
| 16766 | 4690 | 10 | 8.3 | 3 | 2 |
| 16959 | 5236 | 10 | 8.3 | 3 | 2 |
| 20229 | 5239 | 15 | 11.1 | 3 | 2 |
| 14650 | 4567 | 7 | 6.4 | 2 | 1 |
| 13881 | 4711 | 7 | 5.7 | 2 | 1 |
| 11188 | 4503 | 2 | 3.5 | 1 | 1 |
| 18882 | 4978 | 13 | 10 | 3 | 2 |
| 17728 | 5306 | 11 | 9 | 3 | 2 |
| 14650 | 4520 | 7 | 6.3 | 2 | 1 |
| 11188 | 3960 | 2 | 3.4 | 1 | 1 |
| 18305 | 4781 | 13 | 9.5 | 3 | 2 |
| 17151 | 4585 | 11 | 8.5 | 3 | 2 |
| 9649 | 4130 | 1 | 2 | 1 | 1 |
| 14266 | 4750 | 7 | 6.1 | 2 | 1 |
| 19652 | 5762 | 15 | 10.6 | 3 | 2 |
| 10419 | 3944 | 1 | 2.7 | 1 | 1 |
| 11957 | 4337 | 3 | 4.1 | 1 | 1 |
| 12535 | 4533 | 3 | 4.5 | 1 | 1 |
| 11380 | 4017 | 2 | 3.5 | 1 | 1 |
| 15612 | 4472 | 8 | 7.2 | 2 | 2 |
| 11380 | 3919 | 2 | 3.5 | 1 | 1 |
| 15805 | 4911 | 8 | 7.4 | 2 | 2 |
| 15612 | 4770 | 8 | 7.2 | 2 | 2 |
| 16382 | 4530 | 10 | 7.9 | 3 | 2 |
| 16766 | 5254 | 10 | 8.2 | 3 | 2 |
| 19075 | 5728 | 13 | 10.2 | 3 | 2 |
| 16189 | 4448 | 10 | 7.8 | 3 | 2 |
| 13304 | 4508 | 5 | 5.2 | 1 | 1 |
| 17536 | 5152 | 11 | 8.9 | 3 | 2 |
| 14073 | 4224 | 7 | 5.8 | 2 | 1 |
| 23499 | 5462 | 20 | 13.9 | 3 | 2 |
| 17151 | 4771 | 11 | 8.6 | 3 | 2 |
| 12342 | 4181 | 3 | 4.5 | 1 | 1 |
| 11957 | 4151 | 3 | 4.1 | 1 | 1 |
| 14073 | 4678 | 7 | 5.9 | 2 | 1 |
| 12150 | 4314 | 3 | 4.3 | 1 | 1 |
| 15612 | 4432 | 8 | 7.2 | 2 | 2 |
| 12342 | 4242 | 3 | 4.4 | 1 | 1 |
| 20229 | 4957 | 15 | 11.2 | 3 | 2 |
| 12342 | 4323 | 3 | 4.3 | 1 | 1 |
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Algebra (subscription)
Authors: Elayn Martin Gay
5th Edition
0134179137, 9780134179131
