The McGranger Mortgage Company made some changes to the process and undertook a process capability study. The following data were obtained for 15 samples of size 5. Based on the individual observations. management estimated the process standard deviation to be 4.47 (days) for use in the process capability analysis. The lower and upper specification limits (in days) for the mortgage process times were 11 and 25. Sample Mean 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 14 15 11 19 16 14 20 19 16 17 19 12 18 17 12 Range 11 14 5 12 11 9 6 16 15 12 7 13 11 12 a. Calculate the process capability index and the process capability ratio values. The process capability index C.pk = (Enter your response rounded to three decimal places.) The process capability ratio Cp = (Enter your response rounded to three decimal places.) b. Suppose management would be happy with three-sigma performance. What conclusions is management likely to draw from the capability analysis? Since Cpk is the critical value the process capable at the three-sigma level. Since Cp is the critical value this indicates that

Residents of Lake Caliopa, Minnesota, began noticing an unusually high number of lung ailments among the local population.•Several concerned citizens pooled their resources and commissioned a study to compare the frequency of these health conditions in Lake Caliopa with national averages.•The study concluded that residents of Lake Caliopa experienced four to seven times the rate of frequency of asthma, bronchitis, and emphysema as the population nationwide. During the study period, citizens began expressing concerns about the large volume of smog emitted by the Cotton Design apparel manufacturing plant on the outskirts of town.•The plant had a production facility two miles east of town beside the Tawakoni River and employed seventy full-time workers.•Just downstream on the Tawakoni River, the city of Lake Caliopa operated a public water works facility, which supplied all city residents with water.•The Minnesota Pollution Control Agency required Cotton Design to install new equipment to…