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13.t is the y-intercept term, b0?
A) 34.7400.
B) 92.2840.
C) 512.3600.
D) 47.6712.
The correct answer was D)
The mean of the aggregate revenue (Y) is 3,645/10 = 364.50 and of the advertising expenditure (X) is 91.2/10 = 9.12. The y-intercept, b0 = MeanY – Slope * MeanX = 364.50 – 34.74 * 9.12 = 47.6712.
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发表于 2008-4-1 13:47
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