An automatic filling machine is used to fill 1-liter bottles of cola. The machine’s output is approximately normal with a mean of .95 liter and a standard deviation of .03 liter. Output is monitored using means of samples of 25 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 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?
Operations Management Task: Automatic Filling Machine

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    Part (a):
    Given that
    Mean 0.95 liter
    Standard deviation 0.03 liter...
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