A set of n = 15 pairs of X and Y scores has SSX = ... A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X?

Question

Mathematics

Silvester

7 February, 09:07

A set of n = 15 pairs of X and Y scores has SSX = ... A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X?

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Dana · Answer 1

This question is asking only for the slope of the regression equation. This slope can be easily calculated using the following rule:

slope = SP / SSx

Examining the givens, we will find that both parameters are given where:

SP = 30 and SSx = 10

Substituting with the givens in the above mentioned equations, we can calculate the slope as follows:

slope = 30 / 10 = 3