A shampoo company would like to use an X-bar (mean) chart to assess the bottling process. The know from past experience that whenever the process is in control, bottle volume has a mean of 12 oz. with a standard deviation of 0.52 oz. The company plans to measure 43 bottles from the production line each hour and record the average fill in oz. If the company uses z = 3.0 what is the LCL?
Express with 2 decimals.
The answer is 11.76