Question: A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that the process standard deviation

A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that the process standard deviation is two kilograms. Each day last week, he randomly selected four packages and weighed each. The data from that activity appears below. You do NOT need to show your calculation steps. There is NO partial credits for any mistake (ie, each answer is either night or wrong). Weights Package 1 Package 2 Package 3 Package 23 22 23 24 23 21 19 Days Monday Tuesday Wednesday Thursday Friday 21 20 19 20 21 18 19 20 19 18 20 22 20 Q.2.A. What is the sample size (n) in this problem? And what is the number of samples (le) in this problem? No explanation needed here. Q.2.B. Calculate the UCL and the LCL for the X-bar chart, using 20 for variations due to natural causes 0.2.C. In the procesa in control or out of control" Justify your answer ERE United States Type here to search 50

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