#6 The accompanying data are x = advertising share and y = market share for a...

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

x	0.102	0.072	0.071	0.077	0.086	0.047	0.060	0.050	0.070	0.052
y	0.138	0.125	0.120	0.086	0.079	0.076	0.065	0.059	0.051	0.039

(a) Calculate the equation of the estimated regression line. (Round your answers to six decimal places.)
y =

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

(b) Compute r². (Round your answer to three decimal places.)

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

On how many degrees of freedom is your estimate based?

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Expert Solution

orchestra answered 1 year ago

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