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Regression Analysis with T = 1 to 80 Was Used

Question 19

Essay

Regression analysis with t = 1 to 80 was used to develop the following forecast equation:
ŷt = 135 + 4.8t 1.3Q1 1.7Q2 + 1.5Q3
where:
Qi = 1, if quarter i (i = 1, 2, 3)
= 0, otherwise.
Forecast the next four values.

Correct Answer:

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