I need help with part C please.

Here are earnings per share for two companies by quarter from the first quarter of three years ago through the second quarter of this year. Forecast earnings per share for the rest of this year and next year. Use exponential smoothing to forecast the third period of this year, and the time series decomposition method to forecast the last two quarters of this year and all four quarters of next year. (It is much easier to solve this problem on a computer spreadsheet so you can see what is happening.) QUARTER 3 years ago 2 years ago -35=-===-===- EARNINGS PER SHARE COMPANY A COMPANY B $ 1.64 $ 0.16 2.36 0.26 1.16 0.23 1.21 0.32 1.62 0.24 2.04 0.33 1.19 0.34 0.29 0.45 0.29 0.31 -0.23 (loss) 0.46 -0.93 (loss) 0.45 0.40 0.47 -1.61 (loss) 0.27 0.34 0.47 last year this year a. For the exponential smoothing method, choose the first quarter of 3 years ago as the beginning forecast. Make two forecasts: one with a = 0.20 and one with a = 0.30. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Company A Forecast a = 0.20 Forecast a = 0.30 Quarter Forecast a = 0.20 .160 Company B Forecast a = 0.30 .160 3 years ago 1.640 1.640 = 1.640 .160 . 160 1.640 1.856 = 1.784 .180 .190 = 1.659 1.647 .202 2 years ago - 1.569 1.516 .190 .216 .221 237 = 1.547 .238 = 1.580 1.672 1.575 1.695 .243 .266 ? 1.544 .262 .288 = last year 1.318 1.168 .337 = 1.113 .904 .329 = .844 .564 .368 = .489 .116 .300 302 .333 357 380 .358 .380 = this year 202 393 .416 .372 .401 .471 .0551 .112 = -342 = - 138 b-1. Calculate the MAD for each forecast using data starting with second quarter of 3 years ago through second quarter of this year. (Round your answers to 3 decimal places.) MAD Company A .821 Company B .101 a = 0.20 a = 0.30 .807 .088 b-2. Using the MAD method of testing the forecasting model's performance, plus actual data from 3 years ago through the second quarter of this year, how well did the model perform? Based on MAD, an a of 0.3 performs better than an a of 0.2 c. Using the decomposition of a time series method of forecasting, forecast earnings per share for the last two quarters of this year and all four quarters of next year. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Quarter Company A Seasonal Factor Company B Seasonal Factor Forecast Forecast this year next year - = = = d. Using your forecasts, comment on each company. Company A's EPS is an downward trend Company B's EPS is an upward trend Here are earnings per share for two companies by quarter from the first quarter of three years ago through the second quarter of this year. Forecast earnings per share for the rest of this year and next year. Use exponential smoothing to forecast the third period of this year, and the time series decomposition method to forecast the last two quarters of this year and all four quarters of next year. (It is much easier to solve this problem on a computer spreadsheet so you can see what is happening.) QUARTER 3 years ago 2 years ago -35=-===-===- EARNINGS PER SHARE COMPANY A COMPANY B $ 1.64 $ 0.16 2.36 0.26 1.16 0.23 1.21 0.32 1.62 0.24 2.04 0.33 1.19 0.34 0.29 0.45 0.29 0.31 -0.23 (loss) 0.46 -0.93 (loss) 0.45 0.40 0.47 -1.61 (loss) 0.27 0.34 0.47 last year this year a. For the exponential smoothing method, choose the first quarter of 3 years ago as the beginning forecast. Make two forecasts: one with a = 0.20 and one with a = 0.30. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Company A Forecast a = 0.20 Forecast a = 0.30 Quarter Forecast a = 0.20 .160 Company B Forecast a = 0.30 .160 3 years ago 1.640 1.640 = 1.640 .160 . 160 1.640 1.856 = 1.784 .180 .190 = 1.659 1.647 .202 2 years ago - 1.569 1.516 .190 .216 .221 237 = 1.547 .238 = 1.580 1.672 1.575 1.695 .243 .266 ? 1.544 .262 .288 = last year 1.318 1.168 .337 = 1.113 .904 .329 = .844 .564 .368 = .489 .116 .300 302 .333 357 380 .358 .380 = this year 202 393 .416 .372 .401 .471 .0551 .112 = -342 = - 138 b-1. Calculate the MAD for each forecast using data starting with second quarter of 3 years ago through second quarter of this year. (Round your answers to 3 decimal places.) MAD Company A .821 Company B .101 a = 0.20 a = 0.30 .807 .088 b-2. Using the MAD method of testing the forecasting model's performance, plus actual data from 3 years ago through the second quarter of this year, how well did the model perform? Based on MAD, an a of 0.3 performs better than an a of 0.2 c. Using the decomposition of a time series method of forecasting, forecast earnings per share for the last two quarters of this year and all four quarters of next year. (Negative values should be indicated by a minus sign. Round your answers to 3 decimal places.) Quarter Company A Seasonal Factor Company B Seasonal Factor Forecast Forecast this year next year - = = = d. Using your forecasts, comment on each company. Company A's EPS is an downward trend Company B's EPS is an upward trend