document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=199120>Question 199120</A>: <I><SPAN STYLE=\"word-break: break-all;\"> During recent seasons, major league baseball has been criticized for the lenghts of the games. A report indicated that the average game last 3 hours and 30 minutes. A sample of 17 games revealed the following time completions (note that the mionutes have been changed to fractions of hours, so that the game that last 2 hours and 24 minutes is reported at 2.40 hours)\r<BR>\n" );
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document.write( "2.98,2.40,2.70,2.25,3.23,3.17,2.93,3.18,2.80,2.38,3.75,3.20,3.27,2.52,2.58,4.45,2.45\r<BR>\n" );
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document.write( "Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #149599 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=149599\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> During recent seasons, major league baseball has been criticized for the lenghts of the games. A report indicated that the average game last 3 hours and 30 minutes. A sample of 17 games revealed the following time completions (note that the mionutes have been changed to fractions of hours, so that the game that last 2 hours and 24 minutes is reported at 2.40 hours) <BR>\n" );
document.write( "2.98,2.40,2.70,2.25,3.23,3.17,2.93,3.18,2.80,2.38,3.75,3.20,3.27,2.52,2.58,4.45,2.45 <BR>\n" );
document.write( "Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.<BR>\n" );
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document.write( "Ho: u = 3.5 hrs<BR>\n" );
document.write( "Ha: u < 3.5 hrs<BR>\n" );
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document.write( "Find the mean of the data: I'll call it x-bar = 2.955<BR>\n" );
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document.write( "Test statistic: Find the t-value of x-bar = -38.42<BR>\n" );
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document.write( "Find the p-value associated with that t-value. practically zero<BR>\n" );
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document.write( "Decision: If the p-value is < 5%, reject Ho; if it is greater than<BR>\n" );
document.write( "5% do not reject Ho.<BR>\n" );
document.write( "So, reject Ho.\r<BR>\n" );
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document.write( "Can you do these calculations?<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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