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You want to examine the relationship between study time and score on exams for the final exam in the Regression Analysis course. You create five exams and recruit 50 participants. For each participant in your study, you record their study time and grades on each of those five exams. If you were to use all the data you recorded to build a simple linear regression model, you would violate the independence assumption.

1.5 The increased interconnectedness and interdependence of peoples and countries is referred to as (1) A) Ballot   B) Justice system   C) Election   D) Globalisation  

For Poisson regression, the Wald test for statistical significance would still be reliable even if the sample size is very small.   

2.5 Hybrid dictatorships are when the military exerts complete control over the authority of the country. (1)

2.10 In a democracy the majority wins so policies may discriminate against the minority groups. (1)

1.2 Moving power from national governments to regions so that they have more control. (1) A) Decentralisation   B) Centralisation   C) Globalisation   D) Dispersion  

When we use logistic regression for classification, the training risk is an unbiased estimate for the (true) classification error rate.

SECTION B – CONTEXTUAL QUESTIONS QUESTION 5 – CASE STUDY

Both controlling variables and explanatory variables must be considered in the variable selection process for potential discarding from the regression model.

In logistic regression, if the model is not a good fit, which options below might improve the goodness of fit? Select ALL correct answers.