document.write( "Question 855161: a certain grade egg must weigh at least 2 oz. If the weights of eggs are normally distributed with a mean of 1.5oz and a standard deviation of 0.4oz, appromately how many eggs in a random sample of 29 dozen would you expect to weigh more than 2 oz?
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document.write( "Please show me what formula to use! \n" );
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Algebra.Com's Answer #515256 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a certain grade egg must weigh at least 2 oz. If the weights of eggs are normally distributed with a mean of 1.5oz and a standard deviation of 0.4oz, appromately how many eggs in a random sample of 29 dozen would you expect to weigh more than 2 oz? \n" ); document.write( "------------ \n" ); document.write( "z(2) = (2-1.5)/0.4 = 0.5/0.4 = 1.25 \n" ); document.write( "P(x > 2) = P(z > 1.25) = 0.1056 \n" ); document.write( "--- \n" ); document.write( "# more than 2 oz = 0.1056*29*12 = 36.7 eggs \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |