A study was conducted to see of airbags save lives. The table below lists the results from a simple random sample of front-seat occupants involved in car crashes. Airbag AvailableNo Airbag AvailableOccupant Fatalities4152Total number of occupants11,5419,853 What is the sample proportion of fatalities where there were no airbags available, p2?What is the difference in the two proportions, D?What is the standard error of the difference, SED?

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Answered: A study was conducted to see of airbags…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 7CR

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A study was conducted to see of airbags save lives. The table below lists the results from a simple random sample of front-seat occupants involved in car crashes.

	Airbag Available	No Airbag Available
Occupant Fatalities	41	52
Total number of occupants	11,541	9,853

What is the sample proportion of fatalities where there were no airbags available, p₂?
What is the difference in the two proportions, D?
What is the standard error of the difference, SE_D?

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