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A traffic engineer is curious if elderly drivers are more or less likely to get into accidents than teenage drivers.

The engineer randomly sampled $100$ teenage drivers and $100$ drivers more than $80$ years old, asking both groups if they have gotten in an accident in the last year.

A hypothesis test of ${ p }_{ 1 }= { p }_{ 2 }$ vs. ${ p }_{ 1 } ≠ { p }_{ 2 }$ gives a test statistic $z = 1.13$.

Assuming conditions for inference have been met, what conclusion can be made?

A

Strong evidence exists to suggest that younger and older drivers are equally likely to get into an accident.

B

Weak evidence exists to suggest that younger and older drivers are equally likely to get into an accident.

C

There is insufficient information to come to any conclusion.

D

There is strong evidence of a difference in accident rates between older and younger drivers.

E

There is insufficient evidence to conclude older and younger drivers have different accident rates.

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