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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: What is the forecast for the 4th year's sales revenue by using linear trend method? 261.2354 245.1324 251.2667 256.2354 Question 18 (5 points) Refer to the information in Question 17. What is the forecast for the 4th year's sales revenue by using double smoothing method with =0.4 and =0.2 (start with initial estimates S1=226 and T1=10 for the 1st year)? 265.1243 255.1242 267.3023 254.6131 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: What is the forecast for the 4th year's sales revenue by using linear trend method? 261.2354 245.1324 251.2667 256.2354 Question 18 (5 points) Refer to the information in Question 17. What is the forecast for the 4th year's sales revenue by using double smoothing method with =0.4 and =0.2 (start with initial estimates S1=226 and T1=10 for the 1st year)? 265.1243 255.1242 267.3023 254.6131