Q. An automatic filling machine is used to fill 1 litter bottles of cola. Machine's output is approximately normal with a mean of 1.0 litter also a standard deviation of .01 litters. Output is monitored utilizing means of samples of 25 observations.
A) Evaluate upper also lower control limits which will comprise roughly 97 percent of sample means when process is in control.
B) Given se sample means: 1.005, 1.001, .998, 1.002, .995, also .999 is process in control?