# Question

An chart with three-sigma limits has parameters as follows:

UCL = 104

Center line = 100

LCL = 96

n = 5

Suppose the process quality characteristic being controlled is normally distributed with a true mean of 98 and a standard deviation of8. What is the probability that the control chart would exhibit lack of control by at least the third point plotted?

UCL = 104

Center line = 100

LCL = 96

n = 5

Suppose the process quality characteristic being controlled is normally distributed with a true mean of 98 and a standard deviation of8. What is the probability that the control chart would exhibit lack of control by at least the third point plotted?

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