Need help with excel homework!! Please guide me through the steps for using excel (show what I plug into excel). Thank you!!

Here is the problem:

1.) A historian examining British colonial records for the Gold Coast in Africa suspects that the death rate was higher among African miners than among European miners. In the year 1936, there were 223 deaths among 33,809 African miners and 7 deaths among 1541 European miners on the Gold Coast.

a.)Give a 99% confidence interval for the difference between the proportion of African miners who died and the proportion of European miners who died.

b.)State explicitly whether you are using a large-sample or plus four confidence interval and why.