Question: 22. C-Spec, Inc. is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4

22. C-Spec, Inc. is attempting to determine whether an existing machine is capable of milling an engine part that has a key specification of 4 +0.003 inch. After a trial run en is machine, C-Spec has determined that the machine has a sample mean cf 4.901 inches with a standard deviation of 0.002 inch. a. Calculate the Cpx for this machine. b. Should C-Spec use this machine to produce this part? Why? 23. Ter samples of '5 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 3 the following table: NUMBER OF DEFECTIVE ITEMS IN THE SAMPLE NUMBER OP DEFECTIVE ITEMS IN THE SAMPLE SAMPLE 11 SAMPLE 3 1 1 2 3 4 5 6 7 8 9 10 2 0 3 15 OOO in un uten 0 a. Develop a p-chart for 95 percent confidence (1.96 standard deviation), b. Based on the plotted data points, what comments can you make

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