| Supplier 1 | Supplier 2 |
| 92.0502 | 91.1204 |
| 96.0202 | 86.8404 |
| 83.9802 | 70.4104 |
| 78.5502 | 77.0104 |
| 96.4902 | 83.9104 |
| 107.8802 | 61.4504 |
| 90.7102 | 70.7104 |
| 96.1102 | 84.4304 |
| 86.2302 | 63.1904 |
| 84.0802 | 69.9304 |
| 93.1202 | 103.7404 |
| 80.4702 | 82.1204 |
| 79.0202 | 93.9804 |
| 94.0602 | 72.7204 |
| 100.0602 | 58.1804 |
| 73.8902 | 73.5404 |
| 83.6902 | 74.7804 |
| 82.6202 | 84.1404 |
| 90.1102 | 85.5604 |
| 69.4902 | 62.4204 |
| 94.8702 | 73.2604 |
| 81.5502 | 94.3504 |
| 81.4802 | 87.4104 |
| 88.9502 | 90.0304 |
| 97.6202 | 75.8104 |
| 88.9502 | 89.8804 |
| 82.6202 | 79.6304 |
| 73.9302 | 63.8304 |
| 77.2802 | 82.2404 |
| 69.7702 | 73.0404 |
| 65.1502 | 88.9804 |
| 94.6202 | 78.3604 |
| 71.6902 | 98.3704 |
| 81.9302 | 71.2404 |
| 73.2002 | 61.7704 |
| 77.5702 | 97.7604 |
| 64.2502 | 77.7404 |
| 83.0702 | 82.3104 |
| 60.2802 | 60.5204 |
| 81.7902 | 79.3504 |
| 62.8802 | 66.3104 |
| 91.1402 | 78.2604 |
| 94.2302 | 106.6304 |
| 85.8602 | 75.8304 |
| 94.3602 | 94.0104 |
| 84.0302 | 81.7404 |
| 89.0402 | 83.4804 |
| 85.0302 | 90.8704 |
| 76.8802 | 87.0404 |
| 72.3402 | 75.7504 |
a) What is the lower limit of the 95% confidence interval? Giveyour answer to three decimal places.
b) What is the upper limit of the 95% confidence interval? Giveyour answer to three decimal places. Â
c) Based on this interval, does the claim that mean RC rating isthe same for both suppliers seem reasonable?
No because 0 is not inside the interval.
Yes because 0 is not inside the interval. Â
No because 0 is inside the interval.
Yes because 0 is inside the interval.
