onsider the data. xi 2 6 9 13 20 yi 6 16 9 24 22 a. The estimated regression equation for these data is  ŷ = 6.4 + 0.9x.  What percentage of the total sum of squares can be accounted for by the estimated regression equation? (Round your answer to one decimal place.)   b. What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 7E
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Consider the data.
xi
2 6 9 13 20
yi
6 16 9 24 22

a. The estimated regression equation for these data is 

ŷ = 6.4 + 0.9x.

 What percentage of the total sum of squares can be accounted for by the estimated regression equation? (Round your answer to one decimal place.)

 

b. What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)

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