Question: 35. Consider the data for Problem 34. a. Using the data from 1991 and 1992, determine initial values of the intercept, slope, and seasonal factors

35. Consider the data for Problem 34.

a. Using the data from 1991 and 1992, determine initial values of the intercept, slope, and seasonal factors for Winters’s method.

b. Assume that the observed demand for the first quarter of 1993 was 18. Using a = .2,B = .15, and y = .10, update the estimates of the series, the slope, and the seasonal factors.

c. What are the forecasts made at the end of the first quarter of 1993 for the remaining three quarters of 1993?

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