Question: Sampling 9 boxes per every hour for the past 8 hours has produced the following results: WEIGHT OF SAMPLE WEIGHT OF SAMPLE HOUR (AVG. OF
Sampling 9 boxes per every hour for the past 8 hours has produced the following results:
| WEIGHT OF SAMPLE | WEIGHT OF SAMPLE | ||
| HOUR | (AVG. OF 9 BOXES) | HOUR | (AVG. OF 9 BOXES) |
| 1 | 16.1 | 5 | 16.3 |
| 2 | 16.8 | 6 | 14.8 |
| 3 | 15.5 | 7 | 14.2 |
| 4 | 16.4 | 8 | 17.3 |
(a) What is the value of X bar bar (X double bar)? Show all your work.
(b) Develop X Chart. In this case, =1.3. Determine UCL and LCL. Show all your work.
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