Question: Construct the appropriate quality control charts using the data provided in the case. Use X and R chart. Observations of Service Times (minutes) 2 Sample

Construct the appropriate quality control charts using the data provided in the case. Use X and R chart.

Construct the appropriate quality control charts

Observations of Service Times (minutes) 2 Sample 1 3 4 5 1 6.3 2.7 3.9 5.7 4.5 7.1 2 3.8 6.2 5.4 5.1 3 5.3 5.6 6.2 5 5.3 4 3.9 7.2. 6.4 5.7 4.2 5 4.6 3.9 5.1 4.8 5.6 6 5.5 5.2 7.4 8.1 6.3 7.3 7 6.1 6.5 5.9 5.7 8 2.2 3.6 5.7 5.3 5.6 6 X 5.9 4.833333333 4.7 5.383333333 4.95.383333333 7.1 5.75 6 5 5.9 6.4 8.4 6.65 54.566666667 5.3 6.533333333 5.95.316666667 5.3 4.016666667 3.4 4.566666667 3.7 4.95 5.7 5.05 3.9 4.466666667 79.05 9 6.5 6.8 5.1 9.3 6.2 10 4.7 5.8 5.4 5.1 5 11 3.4 2.9 1.6 4.8 6.1 12 4.5 6.3 5.4 5.7 2.1 13 7.4 3.9 4.2 4.9 5.6 14 5.7 5.3 4.1 3.7 5.8 15 6 3.6 2.4 5.4 5.5 x=5.27

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