Question

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?

Lemon Imports	230	270	364	461	526
Crash Fatality Rate	16.1	16	15.7	15.5	15.2

Find the equation of the regression line.

yhat= _+ (_)x

Answer 1

x(Lemon Imports)	y (Crash Fatality Rate)	xy	x²	y²
230	16.1	3703	52900	259.21
270	16	4320	72900	256
364	15.7	5714.8	132496	246.49
461	15.5	7145.5	212521	240.25
526	15.2	7995.2	276676	231.04
Σx=1851	Σy=78.5	Σxy=28878.5	Σx²=747493	Σy²=1232.99