document.write( "Question 741966: A report states that 40% 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? \n" ); document.write( "
Algebra.Com's Answer #452220 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A report states that 40% 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? \n" ); document.write( "--------------------- \n" ); document.write( "n = [z/E]^2*p*q \n" ); document.write( "------- \n" ); document.write( "n = [1.96/0.04]^2*0.4*0.6 = 577 when rounded up \n" ); document.write( "============================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================================ \n" ); document.write( " |