document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1181791>Question 1181791</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A job director learned that the mean starting monthly salary for teachers is Php14,000.00. A sample means starting monthly salary of Php13,450.00 and a standard deviation of Php400.00 were gathered from a survey involving 10 teachers. Is there enough evidence to reject the director’s claim at a 0.05 level of significance? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #811797 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=811797\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho: salary is 14000<BR>\n" );
document.write( "Ha: salary is not<BR>\n" );
document.write( "alpha=0.05 p{reject Ho|Ho true}<BR>\n" );
document.write( "test stat is a t(0.975, df=9)<BR>\n" );
document.write( "critical value |t| >2.262<BR>\n" );
document.write( "t=(13450-14000)/400/sqrt(10)<BR>\n" );
document.write( "=-550*sqrt(10)/400<BR>\n" );
document.write( "=-4.35<BR>\n" );
document.write( "reject Ho and conclude that the true monthly salary is < 14,000 with p-value <0.0019 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );