# Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart...

###### Question:

Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table:

 SAMPLE n NUMBER OF DEFECTIVE ITEMS IN THE SAMPLE 1 15 2 2 15 0 3 15 3 4 15 3 5 15 3 6 15 1 7 15 3 8 15 2 9 15 0 10 15 3

a. Determine the p−p−, Sp, UCL and LCL for a p-chart of 95 percent confidence (1.96 standard deviations). (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 3 decimal places.)

 p−p− Sp UCL LCL

 Process is out of statistical control Process is in statistical control

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