Data from the Motor Vehicle Department indicate that 80% of all licensed drivers are older than age
Question: Data from the Motor Vehicle Department indicate that 80% of all licensed drivers are older than age 25.
a. In a sample of n = 60 people who recently received speeding tickets, 38 were older than 25 years and the other 22 were age 25 or younger. Is the age distribution for this sample significantly different from the distribution for the population of licensed drivers? Use a = .05.
b. In a sample of n = 60 people who recently received parking tickets, 43 were older than 25 years and the other 17 were age 25 or younger. Is the age distribution for this sample significantly different from the distribution for the population of licensed drivers? Use a = .05.
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