document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1165619>Question 1165619</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A physician claims that joggers' maximal volume oxygen uptake is greater than the average of all adults. A sample of 15 joggers has a mean of 43.6 milliliters per kilogram (ml/kg) and a standard deviation of 6 ml/kg. If the average of all adults is 36.7 ml/kg, is there enough evidence to support the physician's claim at = 0.05? <BR>\n" );
document.write( "First, identify the alternative and the null hypotheses.<BR>\n" );
document.write( "Second, calculate the critical value and <BR>\n" );
document.write( "Next, use the appropriate formula. <BR>\n" );
document.write( "Finally, decide whether or not to reject the null hypothesis. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #853058 by </B><A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><B>amarjeeth123(573)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amarjeeth123><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=853058\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a one-way t-test<BR>\n" );
document.write( "test stat is a t(0.975, df=14)= (xbar-mean)/s/sqrt(n)<BR>\n" );
document.write( "Ho: means are the same or the joggers are less<BR>\n" );
document.write( "Ha: Joggers are more<BR>\n" );
document.write( "critical value t > 1.761<BR>\n" );
document.write( "t=(43.6-36.7)/6/sqrt(15)<BR>\n" );
document.write( "=6.9*sqrt(15)/6=4.45<BR>\n" );
document.write( "Reject Ho. Maximal oxygen uptake by joggers is more than the average of all adults.<BR>\n" );
document.write( "p-value=0.0003 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );