Center lines and limits calculated from these past data

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Hospital losses. Table 27.6 gives data on the losses (in dollars) incurred by a hospital in treating major joint replacement (DRG 209) patients.¹³ The hospital has taken from its records a random sample of 8 such patients each month for 15 months.

(a) Make an s control chart using center lines and limits calculated from these past data. There are no points out of control.

(b) Because the s chart is in control, base the chart on all 15 samples. Make this chart. Is it also in control?

Reference no: EM131048444

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