In an investigation into the effectiveness of car seat belts, 292 accident victims were classified according to the severity of their injuries and whether they were wearing a seat belt at the time of the accident. The results were as follows: Wearing a seat belt Not wearing a seat belt Death 3 47 Severe injury Minor injury 78 103 32 29 Determine, at 0.5% level, whether the severity of injuries sustained is dependent on whether the victims are wearing a seat belt.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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In an investigation into the effectiveness of car seat belts, 292 accident victims were
classified according to the severity of their injuries and whether they were wearing a
seat belt at the time of the accident. The results were as follows:
Wearing a seat belt Not wearing a seat belt
Death
3
47
Severe injury
Minor injury
78
32
103
29
Determine, at 0.5% level, whether the severity of injuries sustained is dependent on
whether the victims are wearing a seat belt.
Transcribed Image Text:Question In an investigation into the effectiveness of car seat belts, 292 accident victims were classified according to the severity of their injuries and whether they were wearing a seat belt at the time of the accident. The results were as follows: Wearing a seat belt Not wearing a seat belt Death 3 47 Severe injury Minor injury 78 32 103 29 Determine, at 0.5% level, whether the severity of injuries sustained is dependent on whether the victims are wearing a seat belt.
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