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A group of business administration students want to conduct a survey in Caguas to find out...

A group of business administration students want to conduct a survey in Caguas to find out the demand from residents for vegetarian food. One of the first steps in a pilot study is to estimate the percentage of residents who like vegetarian food. In a previous study it was estimated that the proportion of residents who like vegetarian food is 0.46. To estimate a 95% confidence interval for the proportion of residents who like vegetarian food with no greater than 0.0657 error, we must use a sample size of not less than ________.
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Answer #1

Given,

p = 0.46

So q = 1 - 0.46 = 0.54

E = 0.0657

For 95% confidence, z = 1.96

Hence,

Sample size required

n = 222

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