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(Solved) The following data on x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years is from

Question: The following data on x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years is from the article "Testing Alternative Econometric Models on the Existence of Advertising Threshold Effect" ( Journal of Marketing Research [1984]: 298-308

x .103 .072 .071 .077 .086 .047 .060 .050 .070 .052
y .135 .125 .120 .086 .079 .076 .065 .059 .051 .039
  1. Calculate the equation of the estimated regression line.
  2. Use the regression equation to predicted market share when the advertising share is 0.05.
    Compute r 2 .
  3. Calculate a point estimate of .

On how many degrees of freedom is your estimate based?

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