Question: A Quality Analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is

A Quality Analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is under control package weight is normally distributed with a mean of twenty ounces and a standard deviation of two ounces. Each day last week he randomly selected four packages and weighed each Das Weight Counses) Monday 23 32 23 34 Today 23 21 19 21 Wednesday 30 30 21 Thunday TS 19 20 19 Friday 13 20 the wes upper and lower control Tits of 22 and 18 ounces, what is his link (alpha) of concluding this process h out of control when it in actually in control Type ! ) 00026 0.0456 0.3174 06826 09544

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