Refer to Exercise 4-37. Suppose that the machine is considered to be out of statistical control if
Question:
(a) If the true mean diameter of all bearings produced is 35 mm, what is the probability of the test indicating that the machine is out of control?
(b) Suppose that the setting of the machine is accidentally changed such that the mean diameter of all bearings produced is 35.05 mm. What is the probability of the test indicating that the machine is in statistical control?
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Sampling distribution of is approximately normal with mean x 35 and ...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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