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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 2GP
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Question
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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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe46938a4-41c8-4e0a-8bdd-05339203ff7b%2F589a852c-241a-4380-a7a5-fd82ad2040a5%2Fu1avczu_processed.png&w=3840&q=75)
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
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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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