(See Solution) Are the machine tools manufactured by Company X and Y different with regard to how long they last? Company X Company Y X̄ 16.2 weeks 15.9 weeks
Question: Are the machine tools manufactured by Company X and Y different with regard to how long they last?
| Company X | Company Y | |
| \[\bar{X}\] | 16.2 weeks | 15.9 weeks |
| s | .2 weeks | .2 weeks |
| n | 40 | 40 |
Test at = .08
Deliverable: Word Document 
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