Which of the following statements is true?
A) Thevalue will tend to be smaller than the adjustedvalue when insignificant independent variables are included in the model.
B) The y -intercept will usually be negative in a multiple regression model when the regression slope coefficients are positive.
C) If the confidence interval estimate for the regression slope coefficient, based on the sample information, crosses over zero, then the true population regression slope coefficient could be zero.
D) The x-intercept will usually be positive in a multiple regression model when the regression slope coefficients are negative.
E) None of these.

Question

Quizplus · Accepted Answer

If the confidence interval estimate for the regression slope coefficient crosses over zero, it means that the coefficient is not significantly different from zero at a certain level of confidence, and hence there is a chance that the true population regression slope coefficient could be zero. Option A, B, and D are incorrect as they make incorrect generalizations and assumptions about the relationships between variables in a regression model.

Which of the Following Statements Is True