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Chapter 3: Q 73. (page 209)

Using data from the LPGA tour, a regression analysis was performed using x = average driving distance and y = scoring average. Using the output from the regression analysis shown below, determine the equation of the least-squares regression line.

a. y^=87.974+2.391x

b. y^=87.974+1.01216x

c. y^=87.974−0.060934x

d. y^=−0.060934+1.01216x

e. y^=−0.060934+87.947x

Short Answer

Expert verified

The correct option is (c) y⏜=87.974−0.060934x

Step by step solution

01

Given information

The output is

02

Concept

The regression equation is written as:

y⏜=a+bxa=Interceptcoefficientb=Slopecoefficient

03

Explanation

Here, x is the average driving distance and y is the scoring average.

The regression line's equation might be constructed as follows using the provided output:

y⏜=a+bxy⏜=87.974−0.060934x

So, the equation of the regression line is

y⏜=87.974−0.060934x

Hence, the correct option is (c).

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