Regression analysis was applied between sales (y in $1000) and advertising (x in $100) and the following estimated regression equation was obtained. y = 80 + 6.2x Based on the above estimated regression line, if advertising is $10,000, then the point estimate for sales (in dollars) is
a. $62,080.
b. $142,000.
c. $700.
d. $700,000.
d
Business
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