Suppose that the samples of polythene bags from two manufacturers A and B are treated by a prospective buyer for bursting pressure with the following
Suppose that the samples of polythene bags from two manufacturers A and B are treated by a prospective buyer for bursting pressure with the following results;
| Bursting pressure (Ibs) | number of bags A B | |
| 5.0 - 9.9 | 2 | 9 |
| 10.0 - 14.9 | 9 | 11 |
| 15.0 - 19.9 | 29 | 18 |
| 20.0 -24.9 | 54 | 32 |
| 25.0 - 29.9 | 11 | 27 |
| 30.0 -34.9 | 5 | 13 |
| | 110 | 110 |
Required
- Which set of bags has the highest average bursting pressure?
- Which has more uniform pressure?
- If prices are the same, which manufacturers bags would be preferred by the buyer and why?
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Authors: Scott Miller, Donald Childers
2nd edition
123869811, 978-0121726515, 121726517, 978-0130200716, 978-0123869814
