The following regression output was generated based on a sample of utility customers.The dependent variable was the dollar amount of the monthly bill and the independent variable was the size of the house in square feet. Based on this regression output,what is the 95 percent confidence interval estimate for the population regression slope coefficient?
A)Approximately -0.0003 ----- +0.0103
B)About -0.0082 ----- +0.0188
C)Approximately -32.76 ----- +32.79
D)None of the above.

Question

The following regression output was generated based on a sample of utility customers.The dependent variable was the dollar amount of the monthly bill and the independent variable was the size of the house in square feet.  Based on this regression output,what is the 95 percent confidence interval estimate for the population regression slope coefficient?
A)Approximately -0.0003 ----- +0.0103 
B)About -0.0082 ----- +0.0188 
C)Approximately -32.76 ----- +32.79 
D)None of the above.

Quizplus · Accepted Answer

The 95% confidence interval estimate for the population regression slope coefficient is given by the "95% Conf. Interval for slope" in the output. The interval is (-0.0082, 0.0188), which means we are 95% confident that the true value of the population regression slope coefficient falls between -0.0082 and 0.0188.

The Following Regression Output Was Generated Based on a Sample