Teen deaths. Traffic accidents are the leading causeof death among people aged 15 to 20. In May 2002,the National Highway Traffic Safety Administrationreported that even though only 6.8% of licensed driversare between 15 and 20 years old, they were involved in14.3% of all fatal crashes. Insurance companies havelong known that teenage boys were high risks, but whatabout teenage girls? One insurance company foundthat the driver was a teenage girl in 44 of the 388 fatalaccidents they investigated. Is this strong evidencethat the accident rate is lower for girls than for teensin general?a) Test an appropriate hypothesis and state yourconclusion.b) Explain what your P-value means in this context.
Teen deaths. Traffic accidents are the leading cause
of death among people aged 15 to 20. In May 2002,
the National Highway Traffic Safety Administration
reported that even though only 6.8% of licensed drivers
are between 15 and 20 years old, they were involved in
14.3% of all fatal crashes. Insurance companies have
long known that teenage boys were high risks, but what
about teenage girls? One insurance company found
that the driver was a teenage girl in 44 of the 388 fatal
accidents they investigated. Is this strong evidence
that the accident rate is lower for girls than for teens
in general?
a) Test an appropriate hypothesis and state your
conclusion.
b) Explain what your P-value means in this context.
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