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An Chart for a Normally Distributed Random Variable Has

Question 32

Multiple Choice

An An chart for a normally distributed random variable has control limits set at ±3 standard errors from the centerline.One sample mean falls outside the control limits when the process is actually under control.The probability that this happened by chance is: A) .997 B) .500 C) .050 D) .003 chart for a normally distributed random variable has control limits set at ±3 standard errors from the centerline.One sample mean falls outside the control limits when the process is actually under control.The probability that this happened by chance is:


A) .997
B) .500
C) .050
D) .003

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