QUESTION 4

1. To estimate b0 and b1 in the simple regression analysis above ( y=b0 + b1x+e Equation 1), which of the following should be minimized?

   	A.	Residual sum of errors
   	B.	Sum of all the xs
   	C.	Sum of all the ys
   	D.	Residual sum of squares

4 points

QUESTION 5

1. Use the following sales model for questions 5 and 6.

   UnitSalesCheetos = 20- 2* PriceCheetos($) + 4 * PriceDoritos($)

   If the price of Cheetos increases by $2, unit sales of Cheetos will:

   	A.	Increase 2 units
   	B.	Decrease 4 units
   	C.	Decrease 2 units
   	D.	Increase 4 units

4 points

QUESTION 6

1. Use the following sales model for questions 5 and 6.

   UnitSalesCheetos = 20- 2* PriceCheetos($) + 4 * PriceDoritos($)

   If the price of Doritos decreases by 50 cents, the sales of Cheetos will:

   	A.	Decrease 4 units
   	B.	Increase 4 units
   	C.	Increase 2 units
   	D.	Decrease 2 units