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.

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:

Develop an X-chart and an R-chart and plot the values. From the charts, what comments can you make about theprocess?

Transcribed Image Text:

990 595 912697 109880 99 0000999009990 9 3 916269193 0 N 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5