The National Football League rates prospects by position on a scale that ranges

Question

The National Football League rates prospects by position on a scale that ranges from 5 to 9. Data is available on the position, weight, time in seconds to run 40 yards, and ratings for 25 NFL prospects.The table below shows coefficients after regression.

The variable DPOSITION is defined equal to 1 If position is GUARD, and 0 If OFFENSIVE.

1) The regression equation when the position is GUARD is.....

Coefficients Unstandardized Standardized Coefficients Coefficients Model Sig. BStd. Error Beta (Constant) 11.956 4.500 Weight 022 010 384 Time 2.278 9 Dposition -732 2 2.657 015 2.135 045 2.452 023 2.531 019 29 440 289 417 a. Dependent Variable: Rating

Explanation / Answer

The given regression equation is:

Rating = 11.956 + 0.022 (Weight) - 2.278 (Time) - 0.732 (Dposition)

If the position is GUARD then Dposition = 1. Hence, regression equation will be:

Rating = 11.956 + 0.022 (Weight) - 2.278 (Time) - 0.732 (1)

Rating = 11.224 + 0.022 (Weight) - 2.278 (Time)

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