The accompanying data are x = advertising share and y = market share for a parti

Question

The accompanying data are x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years.

The equation of the estimated regression line is: y =0.003043+1.261178x

(a) Obtain the predicted market share when the advertising share is 0.09. (Round your answer to five decimal places.)

(b) Calculate a point estimate of . (Round your answer to four decimal places.)

x 0.101 0.072 0.072 0.077 0.086 0.047 0.060 0.050 0.070 0.052 y 0.133 0.125 0.123 0.086 0.079 0.076 0.065 0.059 0.051 0.039

Explanation / Answer

(a)The predicted market share when the advertising share is 0.09 is:

y=-0.003043+1.261178*0.09

=0.1104

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