Originally Posted by

**camsin** 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.