Question

A store manager wants to know the demand y for an energy bar as a function of price x. The daily sales for three different prices of the energy bar are shown in the table.
Price, x $ 1.00 $ 1.25 $ 1.54 Demand, y 450 335 300
(i) Use the regression capabilities of a graphing utility to find the least squares regression line for the data.
(ii) Use the model to estimate the demand when the price is $1.39.
Price, x $ 1.00 $ 1.25 $ 1.54
Demand, y 450 335 300
A) (i) ; (ii) 357.97832
B) (i) ; (ii) "436.133926
C) (i) ; (ii) 525.880529
D) (i) ; (ii) "436.133926
E) none of the above

Answer

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