document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=941665>Question 941665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The scores on a particular test are normally distributed with mean of 73 and standard deviation 5. What score would a student need to be among the top 10% of all test scores? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #574079 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=574079\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The scores on a particular test are normally distributed with mean of 73 and standard deviation 5. What score would a student need to be among the top 10% of all test scores?<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Find the z-score with a right tail of 10%<BR>\n" );
document.write( "invNorm(0.9) = 1.2816<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Find the correspondiing score value<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x = z*s + u<BR>\n" );
document.write( "x = 1.2816*5 + 73 = 79.4<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Ans: score >= 79.4<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );