Perhaps the two proportion z-test with unequal variances from this page.Hey there.
I have a question I'm not sure about..
"In a court case on the age at which men and women should purchase alcohol, data were examined from a "random roadside survey" which measured information on age, gender, and drinking behaviour. Of those aged under 20 years, the numbers who drank alcohol in the previous 2 hours were recorded as follows:
Drank alcohol in the past 2 hours?
Males Yes = 77
Males No = 404
Total Males = 481
Females Yes = 16
Females No = 122
Total Females = 138
a) How much evidence do these data provide that there is a difference in the population proportions of males and females in this age group who drink alcohol and drive within 2 hours? Evaluate the evidence using an appropriate hypothesis test and state your conclusions concisely.
b)What assumptions are required for this hypothesis test?"
I know how to do the basic null hypothesis/alternative hypothesis and the p-value testing, but I'm not sure how to work it out in this question, when it has to do with proportions with those figures.
Any help would be appreciated.