Compute the seasonal factors for each quarter.

Refer to the following quarterly data set for nurse staffing hours in Hospital XYZ.

2007-1

19,023

2003-2

16,694

2009-3

16,518

2010-4

24,061

2007-2

13,387

2008-3

21,966

2009-4

24,773

2011-1

21,082

2007-3

16,909

2008-4

26,360

2010-1

19,404

2011-2

16,217

2007-4

21,137

2009-1

22,525

2010-2

20,180

2011-3

17,838

2008-1

22,845

2009-2

11,263

2010-3

13,971

2011-4

25,947

a. Compute the seasonal factors for each quarter.

b. Use a simple linear trend to forecast the demand for nursing hours in 2012.

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