document.write( "Question 1187523: The distribution of cholesterol levels in teenage boys is approximately normal with a mean of 170 and a standard deviation of 30. Levels above 200 warrant attention. (a)How many percent of teenage boys has a cholesterol level greater than 200? (b) What is the highest cholesterol level of the bottom 14%
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #819228 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
mean is 170
\n" ); document.write( "standard deviation is 30.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "percent above 200 is equal to 15.86552596.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "highest cholesterol level of the bottom 14% is equal to 137.5904198.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "i used the ti-84 plus calculator to get these results.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "an online calculator that you can use to get similar results can be found at https://davidmlane.com/hyperstat/z_table.html\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "here are the results from using this calculator.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "percent above 200 (they use ratio rather than percent.
\n" ); document.write( "ratio or proportion = percent divided by 100.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "highest value of bottom 14%.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );