In a multiple regression analysis,if the normal probability plot ____________,then it can be concluded that the assumption of normality is not violated.
A)Is a straight line
B)Has the shape of a symmetric bell-shaped curve
C)Is greatly curved
D)Is left skewed
E)Has the shape of a parabola that opens upward

Question

Quizplus · Accepted Answer

If the normal probability plot is a straight line, it indicates that the residuals (the differences between the observed values and the predicted values) are normally distributed, and therefore, the assumption of normality is not violated. A curved plot or skewness in the plot indicates a violation of the normality assumption. The shape of the plot opening upward as a parabola is never observed in a normal probability plot.

In a Multiple Regression Analysis,if the Normal Probability Plot ____________,Then