Determine upper and lower control limits

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Reference no: EM131794455

An automatic filling machine is used to fill 1-liter bottles of cola. The machine’s output is approximately normal with a mean of 0.99 liter and a standard deviation of 0.04 liter. Output is monitored using means of samples of 27 observations. Use Table-A.

a. Determine upper and lower control limits that will include roughly 97 percent of the sample means when the process is in control. (Do not round intermediate calculations. Round z value to 2 decimal places. Round your answers to 4 decimal places.)

Upper control limits: liter

Lower control limits: liter

b. Given these sample means: 1.005, 1.001, .998, 1.002, .995, and .999, is the process in control?

Yes

Reference no: EM131794455

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