Question: Computer upgrade time are being evaluated. Samples from five observations each have been taken and the results are as listed. Using factors from Table 10.3

Computer upgrade time are being evaluated. Samples from five observations each have been taken and the results are as listed. Using factors from Table 10.3 determine the upper and lower control limits for mean and range charts, and decide if the process is in control

Computer upgrade time are being evaluated.

SAMPLE 1 2 3 4 5 79.2 80.5 79.6 78.9 80.5 78.8 78.7 79.6 79.4 79.6 80.0 81.1 80.4 79.7 80.4 78.4 80.4 80.3 79.4 80.8

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