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Estimate the true proportion of home

A report states that 38% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 4% with 95% confidence?

a. 142

b. 283

c. 566

d. 1132

18,76,764

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## Q : Confidence interval for proportion

In a recent survey of 205 never-married single women, 78% thought they would eventually find, and marry, their perfect mate. A 95% Confidence Interval for this proportion would be .78 plus or minus