Question #113
Reading: Reading 1 Multiple Regression
PDF File: Reading 1 Multiple Regression.pdf
Page: 56
Status: Unattempted
Correct Answer: B
Part of Context Group: Q112-113
Shared Context
Question
Which of the following is most likely to present a problem in using this regression for forecasting?
Answer Choices:
A. Heteroskedasticity
B. Multicollinearity
C. Autocorrelation
Explanation
Multicollinearity is present in a regression model when some linear combination of the
independent variables are highly correlated. We are told that the two independent
variables in this question are highly correlated. We also recognize that unconditional
heteroskedasticity is present – but this would not pose any major problems in using this
model for forecasting. No information is given about autocorrelation in residuals, but this
is generally a concern with time series data (in this case, the model uses cross-sectional
data).