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Quarter/Year Utilization(%) 1/ 2003 82.5 2/ 2003 81.3 3/ 2003 81.3 4/ 2003 79.0

ID: 2434347 • Letter: Q

Question

Quarter/Year Utilization(%)
1/ 2003           82.5
2/ 2003           81.3
3/ 2003           81.3
4/ 2003           79.0
1/ 2004           76.6
2/ 2004           78.0
3/ 2004           78.4
4/ 2004           78.0
1/ 2005           78.8
2/ 2005           78.7
3/ 2005           78.4
4/ 2005           80.0
1/ 2006 80.7
2/ 2006           80.7
3/ 2006           80.8

a. Compute three- and four- quarter moving averages for this time series. Which moving average provides the better forecast for the fourth quarter of 2006?


b. Use smoothing constants of a=.4 and a=.5 to develop forecasts for the fourth quarter of 2006. Which smoothing constant provides the better forecast?

Explanation / Answer

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