One assumption of linear regression is
A)the Y scores at each X form an approximately normal distribution.
B)the X scores at each Y form an approximately normal distribution.
C)at each X,both the X and Y score samples should represent an approximately normal distribution.
D)at each X,approximately 68% of all Y scores should be between .

Question

One assumption of linear regression is
A)the Y scores at each X form an approximately normal distribution. 
B)the X scores at each Y form an approximately normal distribution. 
C)at each X,both the X and Y score samples should represent an approximately normal distribution. 
D)at each X,approximately 68% of all Y scores should be between .

Quizplus · Accepted Answer

One assumption of linear regression is that the Y scores at each X form an approximately normal distribution. This is necessary for many of the statistical tests and procedures used in linear regression. The normal distribution assumption is important because it allows us to make inferences about the population parameters and to use many common statistical techniques.

One Assumption of Linear Regression Is