I'm doing some research into degrees held by professionals of different types, based on survey data. I'd like to be able to provide confidence intervals for some of the subgroups of professionals as they are of variable sample sizes, to work out whether the data is significant. The data is confidential, so i've made up some mock data below to demonstrate.
In the data you can see that 26% of teachers have at least one of the qualifications, 19% of lawyers and 66% of doctors. How do I work out the confidence intervals for this data?
I'm working in stata, and the information is stored as a person by person basis, with a 0 if they don't have a degree, and a 1 if they have one, so I worked out the percentage by adding up and dividing from the total, just can't work out how you get a CI. (does it require SE and SD?)
- Teachers n=115
- PhD :3
- Masters :5
- Diploma :22
- Any of the above qualifications :30
- Lawyers n=220
- PhD :4
- Masters :15
- Diploma :23
- Any of the above qualifications :42
- Doctors n=15
- PhD :3
- Masters :6
- Diploma :1
- Any of the above qualifications :10