Chapter 6, Section 1-CI, Exercise 011

Use the normal distribution to find a confidence interval for a proportionpgiven the relevant sample results. Give the best point estimate forp, the margin of error, and the confidence interval. Assume the results come from a random sample.

A 95% confidence interval forpgiven that^p=0.43andn=475.

Round your answer for the best point estimate to two decimal places, and your answers for the margin of error and the confidence interval to three decimal places.

Best point estimate =Enter your answer; Point estimate

.

Margin of error=Enter your answer; Margin of error

.

The 95% confidence interval isEnter your answer; The 95%confidence interval, value 1

toEnter your answer; The 95%confidence interval, value 2

.

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