document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=265566>Question 265566</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Help me please. I am struggling with this.\r<BR>\n" );
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document.write( "A football coach randomly selected ten players and timed how long each player took to perform a certain drill.  The times (in minutes) were:\r<BR>\n" );
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document.write( "11	11	7	6	10	6	10	15	12	13<BR>\n" );
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document.write( "Assuming the population of times to complete the drill is known to be normally distributed, create a 95% confidence interval estimate for Mu, the mean amount of time for all players to complete the drill.\r<BR>\n" );
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document.write( "Identify x-bar, s, alpha, df, t, E and the confidence interval.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195335 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=195335\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times (in minutes) were: <BR>\n" );
document.write( "11 11 7 6 10 6 10 15 12 13\r<BR>\n" );
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document.write( "Assuming the population of times to complete the drill is known to be normally distributed, create a 95% confidence interval estimate for Mu, the mean amount of time for all players to complete the drill. <BR>\n" );
document.write( "Identify <BR>\n" );
document.write( "x-bar: 10.1<BR>\n" );
document.write( "s: 2.998<BR>\n" );
document.write( "alpha: 5%<BR>\n" );
document.write( "df = 9<BR>\n" );
document.write( "t (depends on whether they want the critical value or the test statistic)<BR>\n" );
document.write( "E = 1.96*2.998/sqrt(10) = 1.8582..<BR>\n" );
document.write( "the confidence interval: 10.1-1.8582 < u < 10.1+1.8582<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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