Regression analysis with t = 1 to 80 was used to develop the following forecast equation: = 250 + 7.8t + 1.4Q₁− 1.7Q₂− 1.4Q₃,where 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: = 250 + 7.8t + 1.4Q₁− 1.7Q₂− 1.4Q₃,where Forecast the next four values.

Regression Analysis with T = 1 to 80 Was Used