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 .019 litres. Output is monitored using means of samples of eight observations. a. Determine the upper and lower control limits that will include roughly 68.26 percent of the sample means. (Round the final answers to 3 decimal places.) Upper Control limits Lower Control limits litres litres b. If the means for 6 samples are 1.009, 992, 1.002, 1.007, .994, and 1005, is the process in control