Question: 2. A machining operation requires close tolerances on a certain part for automobile engines. The current tolerance for this measurement is 6.0 cm +/- .001.

2. A machining operation requires close tolerances on a certain part for automobile engines. The current tolerance for this measurement is 6.0 cm +/- .001. The quality control procedure is to take a sample of size 4 and measure each of the parts. Based on past samples of size 4, the average of the averages is 6.0 and the average range is 0.0015. 1. Construct an average and range chart for this part. 2. Using the following data, is the process in control? Sample 1 2 3 4 5 Average 6.0015 6.0008 6.0005 6.0010 5.9904 Range 0.0040 0.0010 0.0024 0.0010 0.0031 3. Is the process running outside of its tolerances

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