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what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C

what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C
• Each day a sample of 100 towels is randomly selected. The number of towels found defective in the sample is recorded. # Defects Sample # 1 Sp= 23456789 total # defects total # observations P (1-P) n 10 3248642 12 10 10 UCLp = p + Z p(1-P) n Sample # 11 12 13 14 15 16 17 18 19 20 # Defects 13 11 14 11 9 16 12 15 18 18 Total = 204 LCLp = p-Z P (1-P) n where Z is number of standard deviations, usually Z = 3 unless told otherwise
Transcribed Image Text:• Each day a sample of 100 towels is randomly selected. The number of towels found defective in the sample is recorded. # Defects Sample # 1 Sp= 23456789 total # defects total # observations P (1-P) n 10 3248642 12 10 10 UCLp = p + Z p(1-P) n Sample # 11 12 13 14 15 16 17 18 19 20 # Defects 13 11 14 11 9 16 12 15 18 18 Total = 204 LCLp = p-Z P (1-P) n where Z is number of standard deviations, usually Z = 3 unless told otherwise
Every 12 hours, 90 parts are randomly sampled and the # of defective parts (out of 90) is recorded. Results from 16 samples follow: Sample Defects 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3 11 5 2 8 0 19 7 9 3 6 9 10 4 8 5 Total # of defects: 99 total # of observations=90*16 = 1440 What is the value of the statistic plotted for sample 2? [go out 4 decimal places
Transcribed Image Text:Every 12 hours, 90 parts are randomly sampled and the # of defective parts (out of 90) is recorded. Results from 16 samples follow: Sample Defects 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3 11 5 2 8 0 19 7 9 3 6 9 10 4 8 5 Total # of defects: 99 total # of observations=90*16 = 1440 What is the value of the statistic plotted for sample 2? [go out 4 decimal places
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