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Problem 10-2 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...
Problem 10-2
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?
YesNo
