The accompanying data are x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years. x 0.104 0.073 0.071 0.077 0.086 0.047 0.060 0.050 0.070 0.052 y 0.135 0.127 0.122 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 2. (Round your answer to three decimal places.) 0.211 X (c) Calculate a point estimate of o. (Round your answer to four decimal places.) On how many degrees of freedom is your estimate based? 9 x
The accompanying data are x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years. x 0.104 0.073 0.071 0.077 0.086 0.047 0.060 0.050 0.070 0.052 y 0.135 0.127 0.122 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 2. (Round your answer to three decimal places.) 0.211 X (c) Calculate a point estimate of o. (Round your answer to four decimal places.) On how many degrees of freedom is your estimate based? 9 x
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The accompanying data are x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years.
x 0.104 0.073 0.071 0.077 0.086 0.047 0.060 0.050 0.070 0.052
y 0.135 0.127 0.122 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) Computer², (Round your answer to three decimal places.)
0.211
X
(c) Calculate a point estimate of o. (Round your answer to four decimal places.)
On how many degrees of freedom is your estimate based?
9
X
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