A random sample of 200 printed circuit boards contains 18 defective or nonconforming units. Estimate the process
Question:
(a) Test the hypothesis that the true fraction nonconforming in this process is 0.10. Use a = 0.05. Find the P-value.
(b) Construct a 90% two-sided confidence interval on the true fraction nonconforming in the production process.
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a p 0 0 10 005 Test H 0 p 0 1 0 ve r su s H 1 p 0 1 0 Reject H 0 i f Z 0 Z 2 np 0 2 00 0 10 20 Sinc...View the full answer
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Related Book For 
Introduction to Statistical Quality Control
ISBN: 978-1118146811
7th edition
Authors: Douglas C Montgomery
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