We want to know what percent of people get their coffee from

Last updated: 8/14/2022

We want to know what percent of people get their coffee from a gas station. A random sample of 50 people found that 20% had gotten their coffee from the gas station. All conditions for inference have been met. a) What is the point estimate, the sample size and the critical z value for the sample? a) Find a 90% confidence interval. Show your work.