Question: Exercise 8 At regular intervals, the operations manager selects and weighs 5 boxes of noodles from a manufacturing plant at random. The weights are in

Exercise 8

At regular intervals, the operations manager selects and weighs 5 boxes of noodles from a manufacturing plant at random. The weights are in grams, as shown in the table below. The standard deviation of the population process is 2.

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1) Determine the sample mean's mean.

2) What are the control limits for the mean chart if z = 3?

3) What are the range chart's control limits? (D3 = 0 and D4 = 2.115)

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