document.write( "Question 567302: 120 students were selected among all those at college number 1. 30 of them are sophomores. Find the margin of error \n" ); document.write( "
Algebra.Com's Answer #366510 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 120 students were selected among all those at college number 1. 30 of them are sophomores. Find the margin of error \n" ); document.write( "----- \n" ); document.write( "Comment: I guess you are say that 0.30 of them are sophomores. \n" ); document.write( "--- \n" ); document.write( "Assuming you want 95% confidence you get: \n" ); document.write( "ME: z*sqrt[pq/n] = 1.96*sqrt[0.3*0.7/120] = 0.0820 \n" ); document.write( "============================================================ \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |