Exercise

Using regression to identify change drivers

It's time to use what you know about multiple regression to answer the executive's question: why did the accident rate increase?

Phrased another way, is there a variable in your dataset that, when added into a multiple regression, can explain the difference in accident rates between the two years?

Instructions 1/3

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Using the southfield dataset, run the appropriate type of multiple regression (linear or logistic) to test whether one year had a significantly higher accident rate, even when taking disengagement into account. Assign the result to regression.