document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133253>Question 1133253</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A test involving 340 men ages 20 to 24 found that their blood cholesterol levels had a mean of 189 mg/dl and a standard deviation of 44.7 mg/dl.<BR>\n" );
document.write( "(a) Determine the z-score, to the nearest hundredth, for one of the men who had a blood cholesterol level of 216 mg/dl.<BR>\n" );
document.write( "z216 =  \r<BR>\n" );
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document.write( "(b) The z-score for one man was <BR>\n" );
document.write( "−1.54.<BR>\n" );
document.write( " What was his blood cholesterol level? Round to the nearest hundredth.<BR>\n" );
document.write( "  mg/dl </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #750426 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=750426\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)  z-score = (216 - 189)/44.7 = 0.604 is approximately 0.60<BR>\n" );
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document.write( "b)  -1.54 = (X - 189)/44.7<BR>\n" );
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document.write( "X - 189 = -68.838<BR>\n" );
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document.write( "X = 189 - 68.838 = 120.162 is approximately 120.16<BR>\n" );
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document.write( "His blood cholesterol level is 120.16<BR>\n" );
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