Find the regression equation, letting the first variable be the predictor (x) variable. Using the listed lemon/crash data, where lemon imports are in metric tons and the fatality rates are per 100,000 people, find the best predicted crash fatality rate for a year in which there are 500 metric tons of lemon imports. Is the prediction worthwhile? Use a significance level of 0.05.

Lemon imports 

234

261

363

461

536

Crash fatality rate 

16.1

16

15.7

15.5

15.1