A quality control inspector at Cocoa Fizz is using the data from above to develop control limits. If the average range for the twenty-five samples is .29 ounces (computed as 7.17/25) and the average mean of the observations is 15.95 ounces, develop three-sigma control limits for the bottling operation without knowing the standard deviation of the population. Once completed, use this data to develop control limits for the sample range.