document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=883164>Question 883164</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The time for a professor to grade an exam is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. The interval around the mean that contains 95% of the times needed to grade exams is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #533361 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=533361\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The time for a professor to grade an exam is normally distributed with a mean of 12.6 minutes and a standard deviation of 2.5 minutes. The interval around the mean that contains 95% of the times needed to grade exams is<BR>\n" );
document.write( "------\r<BR>\n" );
document.write( "\n" );
document.write( "Lower limit:: 12.6-1.96*2.5 = 7.7 min<BR>\n" );
document.write( "Upper limit:: 12.6+1.96*2.5 = 17.5 min<BR>\n" );
document.write( "=====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "----------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );