IRS
In a random survey of 226 self-employed individuals, 20 reported having had their tax returns audited by the IRS in the past year. Estimate the proportion of self- employed individuals nationwide who've been audited by the IRS in the past year.
a) Check the assumptions and conditions (to the extent you can) for constructing a confidence interval.
b) Construct a 95% confidence interval.
c) Interpret your interval.
d) Explain what "95% confidence" means in this context.