Part 1 A control chart plots 38 samples per day, 7 days a week. The process runs 24 hours per day and the chart is currently in control. 1. What is the probability of plotting 3 samples in a row in Zone B? 2. On average, an observation will fall into either Zone A or Zone B approximately once every _____ hours.

Part 2 Given a process to fill bottles of oil. The oil can be sold if the volume is 7.41 ounces 0.29 ounces. The process average is found to be 7.49 ounces with a standard deviation of 0.11 ounces. 3. What is the Process Capability Ratio? 4. What is the Process Capability Index? 5. Which of the following most accurately describes the actual process quality level? a. currently better than 3 Quality b. currently less than 3 Quality, and it will still not be capable of 3 Quality if a shift in location occurs c. currently less than 3 Quality, but a shift in location could increase the level to better than 3 Quality The design specification for the length of a component is 20.16 + 0.78. Given the following values for the -chart that monitors the process: = 20.16 LCL = 19.71 UCL = 20.61 6. Does the process meet the traditional definition of a Capable process? 7. The size of one sigma is approximately _______ inches. 8. The quality level of the process is ________ sigma. 9. Does the process meet the definition of true 6 sigma quality? 10. A change to the process has resulted in new control chart values: = 20.16 LCL = 19.65 UCL = 20.67 This change has increased/decreased/not afftected (choose one) the quality of the process. [round to 1 significant digit past the decimal]