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ETC1000 - Business and economic statistics - S1 2025
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You want to test a null hypothesis that the Coefficient of GenderMale equals zero against the alternative that it is less than zero. Perform this test, explaining each step, and explain the practical meaning of the result of your test.
Comment on how accurate your model prediction is.
Use the model to predict the average age of people who died given the characteristics of the first road accident in the data set. What is your prediction? (Report as an integer)
What was the actual age of the person who died in the first road accident?
Interpret the coefficient of Day.of.WeekSunday.
Why is there no variable for StateAustralian Capital Territory? How does this affect the interpretation of the coefficients of StateNew South Wales to StateWestern Australia?
What is the standard error of the regression model? (Report to 4 decimal places)
Consider the model standard error. Which statement is correct regarding interpreting this value?