• For the proportion of males, form a 95% confidence interval:

oWhat distribution should be used?

oWhat is the critical value?

oWhat is the error bound?

oWhat is the lower bound?

oWhat is the upper bound?

oHow do we interpret the results, in context of our study?

Ages are: 17,27,27,27,28,29,32,34,35,37,41,57

Mean: 31.59

Standard deviation:10.04