1.) when autocorrelation is present, which of the following is true?

Regression coefficient estimates are biased

The t distribution remain applicable

The D-W statistic is close to minus one

The estimates of the standard errors of the coefficent are smaller

None of the options are correct

2.) when there is an overlap in the way two or more independent variables influences the dependent variable, you will have?

Multicollinearity

Negative serial correlation

Overfitting

Heteroscedasticity