Regression analysis with t = 1 to 80 was used to develop the following forecast equation:
ŷt = 135 + 4.8t - 1.3_{_Q1}- 1.7Q₂ + 1.5Q₃
where:
Q_i = 1, if quarter i (i = 1, 2, 3)
= 0, otherwise.
Forecast the next four values.

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The Answer of Regression analysis with t = 1 to 80 was used to develop the following forecast equation: ŷt = 135 + 4.8t - 1.3_{_Q1}- 1.7Q₂ + 1.5Q₃ where: Q_i = 1, if quarter i (i = 1, 2, 3) = 0, otherwise. Forecast the next four values.

Regression Analysis with T = 1 to 80 Was Used