Textile manufacturer, Joywill International, is trying to decidewhich vendor they should source for a yarn needed in one of theirproducts. Vendor A has a lower price than Vendor B but thedetermining factor must be the mean breaking strength of theyarn.
Random samples were drawn from the vendors’ supply, with resultsshown below:
| Vendor A | Vendor B |
Sample size | 10 | 12 |
Sample mean | 105 | 98 |
Sample variance | 8 | 9 |
Do these data provide sufficient evidence that the mean yarnstrength for Vendor A is the more than the mean yarn strength forVendor B.
Perform the appropriate hypothesis test using a significancelevel of 0.05.
Do your work in an Excel file. Make Excel do the teststatistic calculation.!!!!!!
