The Appliance Centre sells a variety of electronic equipment and home appliances. For the last four years, the following quarterly sales (in $ millions) were reported: Quarter Year 1 2 3 4 $4.3 4.6 2011 2012 2013 2014 $6.5 5.1 6.4 5.8 $5.8 6.2 4.3 6.5 $6.8 5.7 5.8 6.1 4.9 5.0 Seasonal index for each of the four quarters are as follows. Quarter 1 2 3 4 Seasonal Index 0.8736 1.0444 0.9806 1.1014 a. Use the seasonal indexes to determine the deseasonalized sales. Determine the linear trend equation based on the quarterly data for the four years. (Do not round the intermediate calculations. Round the final answers in millions of dollars to 4 decimal places.) Y'= b. Forecast the seasonally adjusted sales for 2015. (Round the intermediate calculations and the final answers in millions of dollars to 4 decimal places.) Forecast Quarter 1 2 3 4