document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1193684>Question 1193684</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Listed below are the lead concentrations (in vg/g) measured in different Ayurveda medicines,<BR>\n" );
document.write( "Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here<BR>\n" );
document.write( "are from medicines manufactured in the United States. Assume that a simple random sample has<BR>\n" );
document.write( "been selected. Use a 0.10 significance level to test the claim that the mean lead concentration for all<BR>\n" );
document.write( "such medicines is less than 14.0 ug/g.<BR>\n" );
document.write( "U<BR>\n" );
document.write( "2.99<BR>\n" );
document.write( "6.50<BR>\n" );
document.write( "6.03<BR>\n" );
document.write( "5.50<BR>\n" );
document.write( "20.48<BR>\n" );
document.write( "7.48<BR>\n" );
document.write( "12.03<BR>\n" );
document.write( "20.46<BR>\n" );
document.write( "11.49<BR>\n" );
document.write( "17.54\r<BR>\n" );
document.write( "\n" );
document.write( "What is the null and alternative hypotheses?<BR>\n" );
document.write( "H0:<BR>\n" );
document.write( "H1:\r<BR>\n" );
document.write( "\n" );
document.write( "What is the test statistic?\r<BR>\n" );
document.write( "\n" );
document.write( "What is the P Value?\r<BR>\n" );
document.write( "\n" );
document.write( "State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim ______ (fail to reject, accept,reject) the hypothesis.There _______ (is,is not)sufficient evidence at the 0.10 significance level to _______(support, warrant rejection of) the claim that the mean lead concentration for all Ayurveda medicines manufactured in the United States is less than 14.0 / </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #825720 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=825720\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho: mean is >=14.0<BR>\n" );
document.write( "Ha: mean is < 14.0<BR>\n" );
document.write( "alpha is 0.10 p{reject Ho|Ho true}<BR>\n" );
document.write( "test is a t (0.90, df=9)<BR>\n" );
document.write( "critical value t<-1.383. mean is 11.05 sd is 6.46<BR>\n" );
document.write( "calculation is t=(11.05-14.0)/6.46/ sqrt(10)<BR>\n" );
document.write( "=-1.44<BR>\n" );
document.write( "reject Ho and conclude there is sufficient evidence to reject Ho and that the claim that the mean lead concentration is less than 14.0 <BR>\n" );
document.write( "p-value is 0.09 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );