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You want to determine the upper control line for a "p" chart for quality control purposes. You take several samples of a size of 100 items in your production process. From the samples you determine the fraction defective is 0.05. If the desired confidence level leads to a z value of 3, which of the following is the resulting UCL value for the line? 0.095 0.135 0.155 0.115

You want to determine the upper control line for a "p" chart for quality control purposes. You take several samples of a size of 100 items in your production process. From the samples you determine the fraction defective is 0.05. If the desired confidence level leads to a z value of 3, which of the following is the resulting UCL value for the line? 0.095 0.135 0.155 0.115

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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is it .095?

You want to determine the upper control line for a "p" chart for quality control purposes. You take several samples of a size of 100 items in your production process. From the samples you determine the fraction defective is 0.05. If the desired confidence level leads to a z value of 3, which of the following is the resulting UCL value for the line? 0.095 0.135 0.155 0.115
Transcribed Image Text:You want to determine the upper control line for a "p" chart for quality control purposes. You take several samples of a size of 100 items in your production process. From the samples you determine the fraction defective is 0.05. If the desired confidence level leads to a z value of 3, which of the following is the resulting UCL value for the line? 0.095 0.135 0.155 0.115
Expert Solution
Step 1

Answer:- Given sample size, n = 100 

The fraction defective, p = 0.05  and z = 3

Formula for UCL of p-chart is,

UCL = p + z*σp

σp = √(p(1-p)/n)

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