document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167460>Question 1167460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Steel  rods  are  manufactured  with  a  mean  length  of  25  centimeters  (cm).   Because  of  the variability in the manufacturing process, the lengths of the rods are approximately Normally distributed, with a standard deviation of 0.07 cm.\r<BR>\n" );
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document.write( "10% of these rods are longer than what length? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792033 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=792033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> they are longer than 1.28, since that is the 90th percentile<BR>\n" );
document.write( "z=(x-mean)/sd<BR>\n" );
document.write( "1.28=(x-25)/0.07<BR>\n" );
document.write( "8.96=x-25<BR>\n" );
document.write( "x=33.96 cm is the answer. <BR>\n" );
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