It takes about 2 minutes for an CNC lathe to machine the outside diameters of four...

 

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It takes about 2 minutes for an CNC lathe to machine the outside diameters of four pins. Sample batches, each consisting of four pins, were collected every 10 minutes. The diameters of five such sample batches are given in TABLE EX-4. Estimate the Cp and Cpk indexes using the observation and estimate the portion of defectives from these indexes. The specification limits are 2.02 +/- 0.03. Batch #1 Batch #2 Batch #3 Batch #4 Batch #5 Sample 1 2.01 2.03 2.03 2.04 2.05 TABLE EX-4 Sample 2 1.99 2.02 2.04 2.04 2.04 Sample 3 2.00 2.02 2.04 2.05 2.06 Sample 4 2.00 2.01 2.03 2.03 2.06 It takes about 2 minutes for an CNC lathe to machine the outside diameters of four pins. Sample batches, each consisting of four pins, were collected every 10 minutes. The diameters of five such sample batches are given in TABLE EX-4. Estimate the Cp and Cpk indexes using the observation and estimate the portion of defectives from these indexes. The specification limits are 2.02 +/- 0.03. Batch #1 Batch #2 Batch #3 Batch #4 Batch #5 Sample 1 2.01 2.03 2.03 2.04 2.05 TABLE EX-4 Sample 2 1.99 2.02 2.04 2.04 2.04 Sample 3 2.00 2.02 2.04 2.05 2.06 Sample 4 2.00 2.01 2.03 2.03 2.06

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