Determine the typical seasonal pattern for the production

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Reference no: EM13580109

Question: The quarterly production of pinelumber in millions of board feet,by Northwest Lumber since 2004 is:

Quarter

Winter

Spring

Summer

Fall

7.8

10.2

14.7

9.3

6.9

11.6

17.5

9.3

8.9

9.7

15.3

10.1

10.7

12.4

16.8

10.7

9.2

13.6

17.1

10.3

a) Determine the typical seasonal pattern for the production data using the ratio-to-moving-average method.

b) Interpret the pattern.

c) Deseasonalize the data and determine the linear trend equation.

d) Project the seasonally adjusted production for the four quarters of 2009.

Reference no: EM13580109

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