A person who hangs up the phone when he is asked to answer a few questions about his television viewing habits because he is not interested in participating in the study is called a(n) ______.
Fill in the blank(s) with correct word
Question 2
If the error for one data point can help predict the value of the error in nearby data points, then the problem is
a. non-normality c. autocorrelation
b. heteroscedasticity d. multicollinearity