Two machines used in the same operation are to be compared. A random sample of 80 parts
Question:
(a) Can we conclude that there is a difference in the output of the machines? Use a level of significance of 0.10.
(b) Find a 95% confidence interval for difference in the proportion of nonconforming parts between the two machines.
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a H 0 p 1 p 2 0 H a p 1 p 2 0 This pooled estimate ...View the full answer
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Related Book For 
Fundamentals of quality control and improvement
ISBN: 978-0470226537
3rd edition
Authors: amitava mitra
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