Consider the following model linking seasonally adjusted retail-store sales (RSSA) to disposable personal income (DPI):
RSSA = -1,813,520 + 127.429(DPI).
If the quarter four seasonal index is 1.07264 and DPI is 19,119.6, our forecast for quarter-four sales is:
a) $550,200.51
b) $619,352.65
c) $620,531.65
d) $668,116.89
e) None of the above.
Note: Forecasting Class
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