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	READINGS (IN OHMS)
1	1,014	1,019	976	1,018
2	989	1,009	995	984
3	1,020	998	1,012	1,003
4	985	1,014	1,021	1,027
5	976	984	996	1,006
6	1,021	982	1,006	1,011
7	983	1,017	988	978
8	1,011	971	978	1,015
9	990	973	1,002	1,030
10	983	1,002	1,005	1,001
11	1,010	1,001	988	1,000
12	994	979	970	990
13	999	983	974	1,030
14	1,002	1,008	991	980
15	986	1,023	1,006	989

Calculate the mean and range for the above samples.

Note: Round "Mean" to 2 decimal places and "Range" to the nearest whole number.

Determine Double Bar X and R Bar .

Note: Round your answers to 3 decimal places.

Determine the UCL and LCL for a X Bar chart.

Note: Round your answers to 3 decimal places.

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.

What comments can you make about the process?

A. Process is in statistical control

B. Process is out of statistical control

Resistors for electronic clrcults 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 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 thelr measured values are as follows: Use three-sigma control limits. a. Calculate the mean and range for the above samples. Note: Round "Mean" to 2 decimal places and "Range" to the nearest whole number. b. Determine X and R. Note: Round your answers to 3 declmal places. c. Determine the UCL and LCL for a X chart. Note: Round your answers to 3 declmal places. 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. e. What comments can you make about the process? Process is in statistical control Process is out of statistical control