Doug Moodie is the president of Garden Products Limited. Over the last 5 years, his vice president of marketing has been providing the sales forecast using his special "focus" forecasting technique. The actual sales for the past ten years and the forecasts from the vice president of marketing are given below. Year Sales VP/Marketing Forecast 170,300 168,250 165,700 169,000 168,000 168000 170,000 180025 170,000 176000 180,000 160000 180,000 10 165000 160,000 Doug wonders if perhaps a weighted moving average or an exponential smoothing approach to forecasting might be better than having the vice president of marketing prepare the forecast. Doug wants to evaluate a two-period weighted moving average with weights of 0.7 and 0.3 for the most recent and next most recent periods. He also wants to evaluate the exponential smoothing with an a = 0.3 and a starting forecast for period 6 of 168,000 units