Determine the upper and lower control limits

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An automatic filling machine is used to fill 2-litres bottles of cola. The machine's output is known to be approximately Normal with a mean of 1.0 litre and a standard deviation of .015 litres. Output is monitored using means of samples of five observations.

a. Determine the upper and lower control limits that will include roughly 95.44 percent of the sample means. (Round the final answers to 3 decimal places.)

b. If the means for 6 samples are .996, .995, 1.008, 1.005, 1.002, and .997, is the process in control?

Reference no: EM132952616

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