Crime statistics. According to data published by the FBI, the crime index in the Uni...

Crime statistics. According to data published by the FBI, the crime index in the United States has shown a downward trend since the early 1990s (Table 3). \

(A) Find a cubic regression model for the crime index if x = 0 represents 1987.

(B) Use the cubic regression model to predict the crime index hi 2017.