document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1178125>Question 1178125</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question is as follows: Population is normally distributed.\r<BR>\n" );
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document.write( "The football coach randomly selected ten players and timed how long eac player took to perform a certain drill. The times (in minutes) were:\r<BR>\n" );
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document.write( "8.3, 7.3, 13.8, 12.6, 11.1, 9.5, 13.7, 14.2, 9.8, 12.6\r<BR>\n" );
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document.write( "Determine a 95% confidence interval for the mean time for all players.\r<BR>\n" );
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document.write( "I'd appreciate any help! I can't seem to get it, even though I believe I'm doing it correctly. \r<BR>\n" );
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document.write( "The multiple choice options are as follows, if it helps:<BR>\n" );
document.write( "A. 9.70 to 12.90<BR>\n" );
document.write( "B. 13.00 to 9.60<BR>\n" );
document.write( "C. 9.60 to 13.00<BR>\n" );
document.write( "D. 12.90 to 9.70 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #807333 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=807333\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the mean is 11.34<BR>\n" );
document.write( "s is 2.25<BR>\n" );
document.write( "the 95% half-interval is t (0.975, df=9)*s/sqrt(n); t=2.262<BR>\n" );
document.write( "=2.262*2.25/sqrt(9)=1.70<BR>\n" );
document.write( "add to and subtract from mean<BR>\n" );
document.write( "(9.64 min, 13.04 min)<BR>\n" );
document.write( "C<BR>\n" );
document.write( "If you really get stuck, the smaller number is before the larger. That leaves A and C.<BR>\n" );
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