MAT 543 WEEK 9 HOMEWORK

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HOMEWORK WEEK 9

Chapter 14: Exercise 14-2 (page 297 of the text)

14-2 Using the following data, prepare a run chart, scatter chart, and control chart. A late surgery is defined as any surgical operation that was started more than 30 minutes after its scheduled time (Table 14-4).

Table 14-4 Number of Late Surgeries

Month Number of Surgeries Number of Late Surgeries

January 435 112

February 401 129

March 572 186

April 409 103

May 577 89

June 329 67

July 467 156

August 301 94

September 235 89

October 325 127

November 378 156

December 444 124