An X-bar control chart monitors the mean of a process by checking that the average stays between
Question:
An X-bar control chart monitors the mean of a process by checking that the average stays between µ - 3σ/√n and µ + 3σ/√n. When the process is under control,
(a) What is the probability that five consecutive sample means of n cases stay within these limits?
(b) What is the probability that all of the means in a control chart for 100 days fall within the control limits?
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Related Book For
Statistics For Business Decision Making And Analysis
ISBN: 9780134497167
3rd Edition
Authors: Robert A. Stine, Dean Foster
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