Question: The table below shows semi-annual demand (in 1,000s) for Didgets (they're like Widgets, only they're easier to work). A linear trend has been estimated using this data set with t = 1 for 1991.1 and t = 6 for 1993.2. It has an intercept of 1.66 and a slope of 0.24. Use the ratio-to-trend method to calculate seasonal adjustment factors for the first and second half of the year and then forecast the level of demand for 1996.1 and 1996.2. Note: round all intermediate calculations to two decimal places.

Year Demand

1991.1 1.8

1991.2 2.4

1992.1 2.2

1992.2 2.8

1993.1 2.5

1993.2 3.3

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