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
icon
Related questions
Question
100%

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)

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL