Question: QUESTION 6 A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this

QUESTION 6 A quality analyst wants to construct a

QUESTION 6 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 in control, package weight is normally distributed with a mean of 20 ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each: Day Monday Tuesday Wednesday Thursday Friday 23 23 29 18 18 Weight (ounces) 22 23 21 19 19 20 19 29 20 22 24 21 21 19 20 What is the sample mean package weight for Thursday? 0 19 ounces 20 ounces 20.6 ounces O 21 ounces 0 23 ounces

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