document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1030430>Question 1030430</A>: <I><SPAN STYLE=\"word-break: break-all;\">  If n=16, sample mean = 75, sample standard deviation s = 8. The hypotheses are Ho: &#956; = 80  and Ha: &#956; <80. What is the test statistic? Please show your work. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #645329 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=645329\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho is mu > =80<BR>\n" );
document.write( "Ha is mu <80.  Must have the entire possibility contained by both.<BR>\n" );
document.write( "One way test.<BR>\n" );
document.write( "test statistic is t df=15= (75-80)/8/sqrt (16); (data-hypothesized mean)/s/sqrt (n).  It is a t df=(n-1)<BR>\n" );
document.write( "The critical value (not asked for) is =-20/8=-2.5<BR>\n" );
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