chapter 6.1 Confidence Interval for a proportion 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...

chapter 6.1 Confidence Interval for a proportion

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 90% confidence interval for p given that p-hat =0.85 and n=120