The Big Black Bird Company produces fiberglass camper tops. The process for producing the tops must be
Question:
The Big Black Bird Company produces fiberglass camper tops. The process for producing the tops must be controlled so as to keep the number of dimples low: When the process was in control, the following defects were found in l0 randomly selected camper tops over an extended period of time:
Top Dimples
1 ...........7
2 ...........9
3 .........14
4 .........11
5 ...........3
6 .........12
7 ...........8
8 ...........4
9 ...........7
10 .........6
a. Assuming 10 observations are adequate for this purpose determine the three-sigma control limits fur dimples per camper top.
b. Suppose that the next camper top has 15 dimples. What can you say about the process now?
Step by Step Answer:
Big Black Bir d a b The lower control limit is adjusted to zero because the n...View the full answer
Operations management processes and supply chain
ISBN: 978-0136065760
9th edition
Authors: Lee J Krajewski, Larry P Ritzman, Manoj K Malhotra
