A regression analysis between sales (y in $1000) and advertising (x in dollars) resulted in the following equation y = 50,000 + 6x.
The above equation implies that an:

A. increase of $6 in advertising is associated with an increase of $6,000 in sales.
B. increase of $1 in advertising is associated with an increase of $6 in sales.
C. increase of $1 in advertising is associated with an increase of $56,000 in sales.
D. increase of $1 in advertising is associated with an increase of $6,000 in sales.

D. increase of $1 in advertising is associated with an increase of $6,000 in sales.

Step-by-step explanation:

Every dollar in advertisting is multiply by 6 in the equation, but every unit in y represent $1000. That means that $1 1n advertisting is multiply by 6 and then by $1000, that is $1 in advertisting = $6000 in sales.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

step-by-step explanation:

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