Question: 2. Deseasonalize the data and determine the trend equation. 3. Project the sales for 2012, and then seasonally adjust each quarter. Sales of roof material,

2. Deseasonalize the data and determine the trend equation.
3. Project the sales for 2012, and then seasonally adjust each quarter.

2. Deseasonalize the data and determine the trend

Sales of roof material, by quarter, since 2005 for Carolina Home Construction Inc. are shown below (in $ thousands). Quarter $60 82 Year 2005 2006 2007 2008 2009 2010 2011 1 $210 214 246 258 279 302 321 $180 216 228 250 267 290 291 91 113 116 114 120 IV $246 230 280 298 304 310 320

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