Question

1. Among drivers who have had car crashes in the last year, the data was collected by age of driver and appears in the table below. If the ages all had the same crash rate we would expect the probability (percentage) shown in the table as well. (This is adjusted to account for the percentage of that age group in the driving population as a whole.) Using the methods that you learned with Chi-Square Goodness of Fit, test the data at the .10 significance level. Does the data fit the population model or does it differ? Would this provide some evidence for the Ohio Legislatures attempt to raise the driving age to higher than 16 years?   (25 points)

Age	Proportion	Drivers	E	O-E	(O-E)2	(O-E)2/E
Under 25	16%	36
25-44	44%	21
45-64	27%	12
Over 64	13%	19
Total

Answer 1

H0: data fit the population model

H1: data does not fit the population model

Thus the data does not fit the population model.

Would this provide some evidence for the Ohio Legislatures attempt to raise the driving age to higher than 16 years?

Ans : No