The planning department of Padget and Kure Shoes, the manufacturer of an exclusive brand of women€™s shoes, developed the following trend equation, in millions of pairs, based on 5 years of quarterly data.
yˆ = 3.30 + 1.75t
The following table gives the seasonal factors for each quarter.

Determine the seasonally adjusted forecast for each of the four quarters of the sixthyear.

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Quarter IV Index 110.0 120.0 80.0 90.0