4 11 points eBook References Resistors for electronic circuits are manufactured on a high-speed automated machine. The machine is set up to produce a large run of resistors of 1,000 ohms each. Use Exhibit 13.7. To set up the machine and to create a control chart to be used throughout the run, 15 samples were taken with four resistors in each sample. The complete list of samples and their measured values are as follows: Use three-sigma control limits. SAMPLE NUMBER READINGS (IN OHMS) 1 970 995 1030 970 2 1022 1027 977 1022 3 1000 1012 1005 1028 979 1026 992 972 81 1021 23 986 983 988 1017 977 978 1000 993 989 1009 1025 983 1002 9 997 977 971 1020 10 1017 981 972 994 976 1016 977 982 1000 972 983 982 1028 1021 1002 1015 996 981 1009 975 4 5 6 7 8 11 12 13 14 15 995 1014 993 971 a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.) 4 a. Calculate the mean and range for the above samples. (Round "Mean" to 2 decimal places and "Range" to the nearest whole number.) 11 points Mean Range eBook References Sample Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 IM Free Stock Charts... 22 FXChoice Harmonic Scanner TIDAL - High FI 3 Statistical Quality Control - Problems Saved 1 13 14 15 ts b. Determine X and R. (Round your answers to 3 decimal places.) eBook eferences c. Determine the UCL and LCL for a X chart (Round your answers to 3 decimal places.) UCL LCL d. Determine the UCL and LCL for R-chart. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal places.) UCL LCL e. What comments can you make about the process? The process is in statistical control. O The process is out of statistical control