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 $)
1	225.4
2	238.2
3	241.6

What is the forecast for the 4^th year's sales revenue by using linear trend method?

Question 17 options:

261.2354

245.1324

251.2667

256.2354

Question 18 (5 points)

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Refer to the information in Question 17.

What is the forecast for the 4^th 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 1^st year)?

Question 18 options:

	265.1243
	255.1242
	267.3023
	254.6131