(LR-6) Choose a value or interest and use the line of best fit to make an estima

Question

(LR-6) Choose a value or interest and use the line of best fit to make an estimate or prediction.

Show calculated work.

Group Member #1 (Activity Sheet 1) Sample Regression Equation: y--4,443,755.85+244,35132x ý predicted salary of 2009-2010 top paid NFL quarterback in $ x-pass completion % for top paid NFL quarterback in 2009-10 It is important that students use ý instead of y for the response variable and define it to be the predicted salary of a 2009-2010 top paid NFL quarterback in S. Correlation r: r=0.3940 Coefficient of Determination : -0.1553 Scatterplot with Least-Squares Regression Line: 225000000 20000000 15000000 r, 10000000 N5000000 0 10 20 30 40 50 60 70 80 tion % for 30 Highest Paid NFL Quarterbacks in 2009-2010 It is important that students label the two axes, clearly indicating the explanatory variable on the horizontal axis and the response variable on the vertical axis.

Explanation / Answer

y' = -4,443,755.85+244,351.32x

here

x : the pass completion % for top [aid NFL quarterback increases

y : predicted salary of top paid NFL quarterback

let x = 50 (means 50% pass completion)

y = -4,443,755.85+244,351.32 * 50 = $7,773,810.15

at 50% pass completion, predicted salary is $7,773,810.15

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