From Exercise 9: The table below shows the proportion of seat belts users by location (urban, suburban,
Question:
From Exercise 9: The table below shows the proportion of seat belts users by location (urban, suburban, and rural) for automobile passengers/ drivers in the US based on a survey done for the National Highway Traffic Safety Administration (DOT HS 809 557). Sample sizes are as shown in the right-hand column of the table.
Use the appropriate table format to test the hypothesis that the proportion of seat belt users is the same for the driver/ passenger populations in all three locations— urban, suburban, and rural. Use a significance level of 10%.
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OBSERVED FREQUENCIES Location Seatbelt No Seatbelt TOTAL Urban 722130 1533 597 2130 Suburban 762960 ...View the full answer
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Related Book For 
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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