Determine the upper and lower control limits of the x bar

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Reference no: EM13251969

Thirty-five samples of size 7 each were taken from a fertilizer bag filling machine. The results were: overall mean = 57.75 kg, average range = 1.78 kg. Use 3 decimal points.

A) Determine the upper and lower control limits of the X bar chart where the standard deviation is = 3.
B) Determine the upper and lower control limits of the R chart where the standard deviation is = 3.

Reference no: EM13251969

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