Statistical process control

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Reference no: EM1311301

ABC Corporation has been using statistical process control for several months. Their sampling plan calls for a sample size of 100 and the most recent five samples have found the number of defects to be 3, 18, 25, 11, and 15. Prepare a p-chart. Record the values for the UCL, center line, and LCL. In addition, note any points that are out of control. Use a z-value of three.

Sample

# Defective

Sample

# Defective

1

19

9

32

2

8

10

40

3

25

11

39

4

22

12

32

5    20

23

13

48

6

20

14

32

7

24

15

42

8

48



Reference no: EM1311301

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