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b. Determine X and R. Note: Round your answers to 3 decimal places. X bar R bar c. Determine the UCL and LCL for a X chart. Note: Round your answers to 3 decimal places. UCL LCL d. Determine the UCL and LCL for R-chart. Note: Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal p UCL LCL e. What comments can you make about the process? O Process is in statistical control

b. Determine X and R. Note: Round your answers to 3 decimal places. X bar R bar c. Determine the UCL and LCL for a X chart. Note: Round your answers to 3 decimal places. UCL LCL d. Determine the UCL and LCL for R-chart. Note: Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal p UCL LCL e. What comments can you make about the process? O Process is in statistical control

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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es b. Determine X and R. Note: Round your answers to 3 decimal places. X bar R bar c. Determine the UCL and LCL for a X chart. Note: Round your answers to 3 decimal places. UCL LCL d. Determine the UCL and LCL for R-chart. Note: 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? O Process is in statistical control O Process is out of statistical control
Transcribed Image Text:es b. Determine X and R. Note: Round your answers to 3 decimal places. X bar R bar c. Determine the UCL and LCL for a X chart. Note: Round your answers to 3 decimal places. UCL LCL d. Determine the UCL and LCL for R-chart. Note: 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? O Process is in statistical control O Process is out of statistical control
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 10.13. 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 ghong 123456789 10 11 12 13 14 15 READINGS (IN OHMS) 976 998 985 979 1,018 993 974 1,025 1,027 1,021 990 1,019 1,015 1,028 1,027 1,009 1,002 1,016 992 972 1,006 974 981 1,009 976 1,016 1,027 1,027 999 1,000 1,015 1,024 997 986 987 1,028 1,009 996 994 974 994 1,010 990 977 990 1,024 993 1,000 1,006 1,018 1,012 1,015 1,015 1,004 972 977 1,018 1,020 a. Calculate the mean and range for the above samples. Note: Round "Mean" to 2 decimal places and "Range" to the nearest whole number. Sample Number 1 2 3 5 6 7 8 9 10 11 12 13 14 992 979 201 Mean Range
Transcribed Image Text: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 10.13. 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 ghong 123456789 10 11 12 13 14 15 READINGS (IN OHMS) 976 998 985 979 1,018 993 974 1,025 1,027 1,021 990 1,019 1,015 1,028 1,027 1,009 1,002 1,016 992 972 1,006 974 981 1,009 976 1,016 1,027 1,027 999 1,000 1,015 1,024 997 986 987 1,028 1,009 996 994 974 994 1,010 990 977 990 1,024 993 1,000 1,006 1,018 1,012 1,015 1,015 1,004 972 977 1,018 1,020 a. Calculate the mean and range for the above samples. Note: Round "Mean" to 2 decimal places and "Range" to the nearest whole number. Sample Number 1 2 3 5 6 7 8 9 10 11 12 13 14 992 979 201 Mean Range
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