document.write( "Question 135575: birth weights are normally distributed with the mean of 3570g and a standard deviation of 495g. if a hospital wants to watch carefully the lightest 2% of infants, find the weight that seperates the bottom 2% from others. \n" ); document.write( "
Algebra.Com's Answer #99339 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! birth weights are normally distributed with the mean of 3570g and a standard deviation of 495g. if a hospital wants to watch carefully the lightest 2% of infants, find the weight that seperates the bottom 2% from others \n" ); document.write( "---------------------- \n" ); document.write( "Sketch a normal curve and put a point on the horizontal axis \n" ); document.write( "that has 2% of the area to the left under the curve. \n" ); document.write( "----------- \n" ); document.write( "The z-value of that point is -2.0537.. \n" ); document.write( "---------- \n" ); document.write( "Find the raw score (x-value) associated with that z-score, using \n" ); document.write( "z= (x-u)/s \n" ); document.write( "-2.0537 = (x-3570)/495 \n" ); document.write( "x-3570 = -2.0537*495 \n" ); document.write( "x = -1016.61 + 3570 \n" ); document.write( "x = 2553.39g \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |