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.
(a-1) if medianage = 1 year, then cartheft = . (round your answer to 1 decimal place.)
(a-2) choose the correct statement.
an increase in median age increases car thefts.
an increase in median age decreases car thefts.
a decrease in median age decreases car thef