Data

gender	accident	gender	accident
male	yes	female	no
male	no	female	no
male	no	female	no
male	yes	female	no
male	no	female	no
male	no	female	yes
male	yes	female	no
male	no	female	yes
male	yes	female	yes
male	no	female	no
male	no	female	no
male	yes	female	yes
male	no	female	no
male	yes	female	no
male	no	female	yes
		female	no
		female	no
		female	no
		female	no
		female	no
		female	no

µ1= Proportion of males in an accident

µ2= Proportion of females in an accident

Ho= µ1=µ2

Ha= µ1>µ2

α=.05

Success = yes

Variable X N Sample p

accident 6 15 0.400000

accident2 5 21 0.238095

Estimate for p(accident) - p(accident2): 0.161905

95% lower bound for p(accident) - p(accident2): -0.0962816

Test for p(accident) - p(accident2) = 0 (vs > 0): Z = 1.03 P-Value = 0.151

We fail to reject Ho on the .05 level of significance because our p-value is .151. Therefore we do not have sufficient evidence to conclude that the proportion of males in accidents is greater then females.

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