document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=659634>Question 659634</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The distribution of SAT scores is normal with a mean of 500 and SD of 100. \r<BR>\n" );
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document.write( "What SAT score, X value, separates the top 15% of the distribution from the rest? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #410843 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=410843\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distribution of SAT scores is normal with a mean of 500 and SD of 100. <BR>\n" );
document.write( "What SAT score, X value, separates the top 15% of the distribution from the rest?<BR>\n" );
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document.write( "Find the z-value with a left-tail of 85%: <BR>\n" );
document.write( "Using my TI-84 I get z = invNorm(0.85) = 1.0364<BR>\n" );
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document.write( "Find the corresponding SAT score using x = z*s + u<BR>\n" );
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document.write( "Score = 1.0364*100 + 500 = 603.64<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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