All quiz study guides are also examinable.
Conceptual questions
Chapter 12: 1, 2, 3, 4, 5, 6
Chapter 15: 1, 2, 3, 4, 6
Chapter 16: 1, 4
Chapter 12
Describe an appropriate use of model selection.
Name three model selection criteria.
Describe a limitation of stepwise methods of model selection.
Describe why inference is dangerous after model selection.
Chapter 15
Describe the consequences of serial correlation.
Identify whether serial correlation is present and whether it is positive or negative from a lag plot of the residuals, or a PACF plot of residuals.
Suggest a method for making correct inferences when serial correlation is present.
Chapter 16
Describe what is meant by “multivariate” response.
Describe the difference between replicates and multivariate responses.
State the null hypothesis in a bivariate application of Hotellings T statistic.
Identify from a study description and set of null hypotheses, whether Hotelling’s T^2 adjustment should be used, and what kind of t-tests should be used.