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Data from the department of motor vehicles 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 α = .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 α = .05.

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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570
BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

Solutions

Chapter
Section
Chapter 15, Problem 4P
Textbook Problem

Data from the department of motor vehicles 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 α = .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 α = .05.

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