Objective questions based on regression

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Reference no: EM1319646

Question1. Regression analysis was applied between sales (in $10,000) and advertising (in $100) and the following regression function was obtained. Y = 50 + 8 X. Based on the above estimated regression line if advertising is $1,000, then the point estimate for sales (in dollars) is

[A] $130,000

[B] $1,300,000

[C] $8,050

[D] $130

Question2: If the coefficient of correlation is a negative value, then the coefficient of determination

[A] Can be either negative or positive

[B] Must be positive

[C] Must also be negative

[D] Must be zero

Reference no: EM1319646

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