document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1188741>Question 1188741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Bell company manufactures laptop computers. A study indicates that the life spans of their computers are normally distributed, with a mean of 4 years and a standard deviation of 1 year. How long should the company warrant its computers if the company wishes less than 2.28% of its computers to fail during the warranty period? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819914 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=819914\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2.28% is at the left side of the curve and is 2 sd away from the mean.<BR>\n" );
document.write( "z=-2=(x-4)/1<BR>\n" );
document.write( "x=2 years </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );