document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1169236>Question 1169236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1900 miles. What warranty should the company use if they want 96% of the tires to last longer than the warranty? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #793882 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=793882\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Want the 4th percentile z of a normal distribution, and 96% will be above that number<BR>\n" );
document.write( "z=(x-60000)/1900=-1.75<BR>\n" );
document.write( "x-60000=-3326<BR>\n" );
document.write( "x=56674 miles </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );