document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1170490>Question 1170490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sick-leave time of employees in a firm in a month is normally distributed with a mean of 100 hours and a variance of 400 hours. How much time should be budgeted for sick leave if the budgeted amount should be exceeded with a probability of only 2.5%?\r<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 #795430 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=795430\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean is 100 hours<BR>\n" );
document.write( "sd is 20 hours<BR>\n" );
document.write( "want this contained in a normal function where +1.96 sd is the boundary. Everything above that is 2.5%<BR>\n" );
document.write( "z=(x-mean)/sd<BR>\n" );
document.write( "1.96=(x-100)/20<BR>\n" );
document.write( "39.2=x-100<BR>\n" );
document.write( "x=139.2 hours </SPAN>\n" );
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