document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1200048>Question 1200048</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 44.0 months and a standard deviation of 8.5 months.\r<BR>\n" );
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document.write( "(a) If Quick Start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace? (Round your answer to two decimal places.)<BR>\n" );
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document.write( "(b) If Quick Start does not want to make refunds for more than 12% of its batteries under the full-refund guarantee policy, for how long should the company guarantee the batteries (to the nearest month)?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #834066 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52879)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=834066\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "In the post by @Theo, &nbsp;his picture for the problem &nbsp;(a) &nbsp;is incorrect<BR>\n" );
document.write( "(actually, &nbsp;his figure for problem &nbsp;(a), &nbsp;OBVIOUSLY, &nbsp;does &nbsp;relate to problem &nbsp;(b)&nbsp;).\r<BR>\n" );
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document.write( "But the number &nbsp;(the probability 0.1733) &nbsp;is correct, &nbsp;as &nbsp;I &nbsp;checked it.\r<BR>\n" );
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