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Confidence Intervals and Limits for a Proportion Question

A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true proportion of families who own at least on DVD player. Place your limits, rounded to 3 decimal places, in the blanks. Simply provide the numerical values and decimal point if appicable. For example, 0.123 would be a legitimate entry.

Lower limit = __________
Upper limit = __________

Solution Summary

The solution provides step by step method for the calculation of confidence interval for proportion. The formula for the calculation and Interpretations of the results are also included. Attached as an Excel document.