A trainer wishes to find out if there is a relationship between the number of miles...

A trainer wishes to find out if there is a relationship between the number of miles walked per week and the weight of a person. The data for the sample are shown:

Miles Walked, x: 15 20 3 12 17 8

Weight (lbs.), y: 147 106 210 160 122 165

a) Compute the value of the correlation coefficient.

b) Find the equation of the regression line.

c) Find y’ (the weight) when x = 11. (Someone walks 11 miles).

Solutions

Expert Solution

The statistical software output for this problem is :

(a)

the value of the correlation coefficient = -0.976

the equation of the regression line = 223.1137 - 5.7158

(c)

y hat (predicted) = 160.24

orchestra answered 1 year ago

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