Question

5. Listed below are annual data for various years. The data are weights (metric tons) of lemons imported from Mexico and U.S. car crash fatality rates per 100,000 population. Lemon Imports: 230, 265, 358, 480, and 530 Crash Fatality Rate: 15.9, 15.7, 15.4, 15.3, and 14.9 Draw a scatterplot of these two variables and comment on the following: correlation. Fill in the blank with the There appears to be a correct answer. A. Strong Positive B. Strong Negative C. Weak D. No Correlation coefficient, r = [Choose the appropriate value based on the scatterplot] A. 0.959 B. -0.959 C. 0.258 D. 0.043 A. Conclusion: Greater amounts of lemon imports are associated with lower crash fatalities Greater amounts of lemon imports has no association with power crash fatalities B.

Answer 1

Ans:

fatality rate 0 100 200 300 400 500 600

There appears to be a strong negative correlation.

(Option B is correct.)

Correlation coefficient,r=-0.959

(Option B is correct.)

Correct option is :

Greater amonts of lemon imports are associated with lower crash fatalities.

(Option A is correct.)

	Lemon imports	fatality rate
1	230	15.9
2	265	15.7
3	358	15.4
4	480	15.3
5	530	14.9
mean	372.600	15.440
std. dev.	130.801	0.385
r	-0.959
slope,b	-0.003
y-intercept,a	16.491