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A Quadratic Trend Equation Y_t = 900 + 80t -

Question 109

Multiple Choice

A quadratic trend equation y_t = 900 + 80t - 5t² was fitted to a company's sales. This result implies that the sales trend:

A) hit a peak in period 8.
B) hit a peak in period 5.
C) hit a trough in period 8.
D) hit a trough in period 5.

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