Develop a p-chart for a standard deviation of 1.96 (Z=1.96) What are the upper control limit (UCL) & lower control limit (LCL) and what points are "out of control"?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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P-Chart
Ten samples of 20 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table:
Number of defective
items in the sample
Sample
Proportion Defective
1
2
2
4
8
4
9
2
10
16
Develop a p-chart for a standard deviation of 1.96 (Z=1.96)
What are the upper control limit (UCL) & lower control limit (LCL) and what points are "out of control"?
Transcribed Image Text:P-Chart Ten samples of 20 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table: Number of defective items in the sample Sample Proportion Defective 1 2 2 4 8 4 9 2 10 16 Develop a p-chart for a standard deviation of 1.96 (Z=1.96) What are the upper control limit (UCL) & lower control limit (LCL) and what points are "out of control"?
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