Test the claim that all ages have purchase rates proportional to their driving rates. Use α=0.05.
Test the claim that all ages have purchase rates proportional to their driving rates. Use α=0.05.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 10CT
Related questions
Question
A random sample of 160 car purchases are selected and categorized by age. The results are listed below. The age distribution of drivers for the given categories is 18% for the under 26 group, 39% for the 26-45 group, 31% for the 45-65 group, and 12% for the group over 65. Test the claim that all ages have purchase rates proportional to their driving rates. Use α=0.05.
Age |
Under 26 | 26-45 | 46-65 | Over 65 |
Purchases |
66 | 39 | 25 | 30 |
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