Question: The supervisor of a packaging process wants to construct a control chart for monitoring the average weight of the packages. He knows from the past

The supervisor of a packaging process wants to

The supervisor of a packaging process wants to construct a control chart for monitoring the average weight of the packages. He knows from the past experience that the process standard deviation is 2 ounces. From each batch collected, he randomly selected 4 packages and weighed each. The data from that activity appears below. Sample Mean ? Batch 1 Batch 2 Batch 3 Batch 4 Batch 5 23 Package 1 18 24 24 22 20 Weight Package 3 24 25 26 24 21 Package 2 23 23 24 20 21 Package 4 22 20 24 23 26 24.5 22.25 22 Calculate Upper Control Llimit (UCL) of the chart corresponding to the confidence level 92%

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