document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=387872>Question 387872</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The time taken for a computer to boot up, X, follows a normal distribution with mean 30 seconds and standard deviation 5 seconds.\r<BR>\n" );
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document.write( "What is the z-score for a boot up time of x = 30 seconds?<BR>\n" );
document.write( "What is the z-score for a boot up time of x = 20 seconds?<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 #274203 by </B><A HREF=/tutors/aboutme.mpl?userid=user_dude2008><B>user_dude2008(1862)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=user_dude2008><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=274203\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x=30 --> z = (x-mu)/sigma = (30-30)/5 = 0\r<BR>\n" );
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document.write( "x=20 --> z = (x-mu)/sigma = (20-30)/5 = -10/5 = -2 </SPAN>\n" );
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