A regression analysis between sales (in $1000) and advertising (in $) resulted in the following least squares line: y = 80,000 + 5x. This implies that an:
a. increase of $1 in advertising is expected to result in an increase of $5 in sales.
b. increase $5 in advertising is expected to result in an increase of $5,000 in sales.
c. increase of $1 in advertising is expected to result in an increase of $80,005 in sales.
d. increase of $1 in advertising is expected to result in an increase of $5,000 in sales.
D
Business
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