The alpha Corporation has a product with seasonal differences in sales between the halves of the year. Sales in the first half of the year are generally less than for the second half of the year. For this reason they have split sales from the two previous years (7 and 8) into two halves and would like to use these two parts to predict sales in the coming year (9). They also feel there is an upward trend in sales. Sale for the past two years were: First half (F) Second half (S) Year 7 100 110 Year 8 105 130 Company executives estimated the trend at the end of year 6 was 5 units per half year (T6S) = 5. The base at the end of year 6 (365) = 95. Seasonal factors were 1.05 and 0.95 for the first and second half of the year, respectively. a = 0.3 B=0.5 y=0.5 a. Using a trend and seasonal enhanced model, forecast each of the four half years, sequentially updating the model at the end of each half-year. b. At the end of year 8 prepare a forecast for each half-year in year 9. The alpha Corporation has a product with seasonal differences in sales between the halves of the year. Sales in the first half of the year are generally less than for the second half of the year. For this reason they have split sales from the two previous years (7 and 8) into two halves and would like to use these two parts to predict sales in the coming year (9). They also feel there is an upward trend in sales. Sale for the past two years were: First half (F) Second half (S) Year 7 100 110 Year 8 105 130 Company executives estimated the trend at the end of year 6 was 5 units per half year (T6S) = 5. The base at the end of year 6 (365) = 95. Seasonal factors were 1.05 and 0.95 for the first and second half of the year, respectively. a = 0.3 B=0.5 y=0.5 a. Using a trend and seasonal enhanced model, forecast each of the four half years, sequentially updating the model at the end of each half-year. b. At the end of year 8 prepare a forecast for each half-year in year 9