(a) Interpret the slope of the fitted regression CarTheft = 1,667 – 35.3 MedianAge, where CarTheft is the number of car thefts per 100,000 people by state, and MedianAge is the median age of the population.
(b) What is the prediction for CarTheft if MedianAge is 40?
(c) Would the intercept be meaningful if this regression applies to car thefts per 100,000 people by state?