Business Statistics
alaalo
bus_maintenance_f-test_1.2.xlsSheet1
| F-Test Two-Sample for Variances | ||
| Variable 1 | Variable 2 | |
| Mean | 456.4761904762 | 444.9285714286 |
| Variance | 4000.0619047619 | 3420.9945054945 |
| Observations | 21 | 14 |
| df | 20 | 13 |
| F | 1.1692687312 | |
| P(F<=f) one-tail | 0.3943962452 | |
| F Critical one-tail | 2.4588817723 |
Maintenance Data
| Buena School District Bus Data | |||||
| Maintenance cost per month (in Dollars) | Age (in years) | Miles per month | Engine type 0 = Diesel, 1 = gasoline | Seating capacity | Manufacturer |
| 329 | 7 | 853 | 0 | 55 | 0 |
| 503 | 10 | 883 | 0 | 42 | 1 |
| 505 | 10 | 822 | 0 | 55 | 0 |
| 546 | 8 | 870 | 0 | 55 | 1 |
| 433 | 9 | 848 | 0 | 55 | 0 |
| 561 | 12 | 838 | 0 | 55 | 2 |
| 357 | 8 | 760 | 0 | 6 | 0 |
| 329 | 3 | 741 | 0 | 55 | 0 |
| 489 | 9 | 858 | 0 | 55 | 0 |
| 455 | 7 | 828 | 0 | 55 | 0 |
| 503 | 8 | 857 | 0 | 55 | 0 |
| 380 | 9 | 803 | 0 | 55 | 1 |
| 432 | 6 | 819 | 0 | 42 | 0 |
| 478 | 6 | 821 | 0 | 55 | 0 |
| 471 | 9 | 815 | 0 | 42 | 1 |
| 444 | 2 | 757 | 0 | 14 | 1 |
| 493 | 10 | 1008 | 0 | 55 | 0 |
| 452 | 9 | 831 | 0 | 42 | 1 |
| 461 | 6 | 849 | 0 | 55 | 0 |
| 496 | 8 | 839 | 0 | 55 | 2 |
| 469 | 8 | 812 | 0 | 55 | 0 |
| 466 | 10 | 865 | 1 | 55 | 0 |
| 359 | 7 | 751 | 1 | 55 | 1 |
| 427 | 5 | 780 | 1 | 14 | 1 |
| 474 | 9 | 857 | 1 | 55 | 1 |
| 382 | 3 | 818 | 1 | 6 | 1 |
| 422 | 8 | 869 | 1 | 55 | 0 |
| 474 | 10 | 845 | 1 | 55 | 0 |
| 558 | 10 | 885 | 1 | 55 | 0 |
| 497 | 10 | 859 | 1 | 55 | 0 |
| 459 | 8 | 826 | 1 | 55 | 1 |
| 355 | 3 | 806 | 1 | 55 | 0 |
| 436 | 2 | 785 | 1 | 55 | 0 |
| 514 | 11 | 980 | 1 | 55 | 0 |
| 406 | 3 | 798 | 1 | 55 | 1 |
