document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1065814>Question 1065814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have included what I think I have right so far. Thank you!\r<BR>\n" );
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document.write( "H0: &#960;1 = &#960;2<BR>\n" );
document.write( "H1: &#960;1 &#8800; &#960;2<BR>\n" );
document.write( "A sample of 200 observations from the first population indicated that x1 is 170. A sample of 150 observations from the second population revealed x2 to be 110. Use the .05 significance level to test the hypothesis.<BR>\n" );
document.write( "a. State the decision rule.<BR>\n" );
document.write( "b. Compute the pooled proportion.<BR>\n" );
document.write( "        Population 1	170/200=.85<BR>\n" );
document.write( "	Population 2	110/150=.73<BR>\n" );
document.write( "	Pooled Proportion (170+110)/(200+150)=0.8<BR>\n" );
document.write( "c. Compute the value of the test statistic.<BR>\n" );
document.write( "	Test Statistic (0.85 - 0.73)/SQRT (0.8*0.2*(1/200 + 1/150))=2.78<BR>\n" );
document.write( "d. What is your decision regarding the null hypothesis?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #680981 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=680981\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Alpha is 0.05<BR>\n" );
document.write( "The critical value is |z|>1.96<BR>\n" );
document.write( "The z value computed is in excess of 2.70.<BR>\n" );
document.write( "This is significant at the 0.01 level. <BR>\n" );
document.write( "Reject Ho; there is a difference between the two proportions.  They are not samples from the same pool, if one wished to say that. </SPAN>\n" );
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