Question

Asked Oct 20, 2019

A restaurant would like to estimate the proportion of tips that exceed 18% of its dinner bills. Without any knowledge of the population proportion, determine the sample size needed to construct a 96% confidence interval with a margin of error of no more than 4%to estimate the proportion.

The sample size needed is

Step 1

Given data

Error = 4% = 0.04

Confi...

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