Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample.
A 99% confidence interval for p given that p̂ = 0.9 and n = 110.
Round your answer for the point estimate to two decimal places, and your answers for the margin of error and the confidence interval to three decimal places.
Point estimate =
Margin of error = ±
The 99% confidence interval is to .