The operations manager of a manufacturing firm concerns about the sales performance of a particular product in the near future after looking at the historical data. The yearly sales revenues during the last three-year period are provided by the marketing people as follows: Year Sales Revenue (thousand $) 225.4 238.2 241.6 What is the forecast for the 4th year's sales revenue by using linear trend method? Question 18 1 2 3 What is the forecast for the 4th year's sales revenue by using double smoothing method with C = 0.4 and B=0.2 (start with initial estimates S = 226 and T = 10 for the 1st year)?