The following data represent samples that were taken on 10 separate days. Each day has a varying sample size and the number of defects for the items sampled is listed. We want to see if this process is consistent and in control. Day Sample Size Defects 1 105 8 2 115 4 3 185 10 4 185 7 5 250 20 6 240 8 7 100 4 8 160 6 9 240 27 10 260 37 a. Find the UCL. b. Find the LCL. c. Is the process in control? Why/why not?
The following data represent samples that were taken on 10 separate days. Each day has a varying sample size and the number of defects for the items sampled is listed. We want to see if this process is consistent and in control. Day Sample Size Defects 1 105 8 2 115 4 3 185 10 4 185 7 5 250 20 6 240 8 7 100 4 8 160 6 9 240 27 10 260 37 a. Find the UCL. b. Find the LCL. c. Is the process in control? Why/why not?
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The following data represent samples that were taken on 10 separate days. Each day has a varying
Day |
Sample Size |
Defects |
1 |
105 |
8 |
2 |
115 |
4 |
3 |
185 |
10 |
4 |
185 |
7 |
5 |
250 |
20 |
6 |
240 |
8 |
7 |
100 |
4 |
8 |
160 |
6 |
9 |
240 |
27 |
10 |
260 |
37 |
a. Find the UCL.
b. Find the LCL.
c. Is the process in control? Why/why not?
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