document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=974410>Question 974410</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me figure this out for myself, I see the answer I don't understand how you got it. 14.	Based on the information given for the following studies, decide whether to reject the null hypothesis. Assume that all populations are normally distributed. For each, give:	\r<BR>\n" );
document.write( "\n" );
document.write( "a.	The Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected.<BR>\n" );
document.write( "b.	The Z-score on the comparison distribution for the sample score.<BR>\n" );
document.write( "c.	Your conclusion.\r<BR>\n" );
document.write( "\n" );
document.write( "Study	µ	&#963;	Sample<BR>\n" );
document.write( "Score	p	Tails of Tests<BR>\n" );
document.write( "A	5	1	7	0.05	1 (high predicted)<BR>\n" );
document.write( "B	5	1	7	0.05	2<BR>\n" );
document.write( "C	5	1	7	0.01	1 (High predicted)<BR>\n" );
document.write( "D	5	1	7	0.01	2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #596315 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=596315\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 14.	Based on the information given for the following studies, decide whether to reject the null hypothesis. Assume that all populations are normally distributed. <BR>\n" );
document.write( "For each, give:	<BR>\n" );
document.write( "a.	The Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected.<BR>\n" );
document.write( "b.	The Z-score on the comparison distribution for the sample score.<BR>\n" );
document.write( "c.	Your conclusion. <BR>\n" );
document.write( "Study	µ	&#963;SampleScore	p	Tails of Tests<BR>\n" );
document.write( "A	5	1	7	0.05	1 (high predicted)<BR>\n" );
document.write( "Cutoff:: z = 1.645<BR>\n" );
document.write( "test statistic of the sample score:: (7-5)/1 = 2<BR>\n" );
document.write( "Conclusion:: Since the test stat is in the reject interval, reject Ho.<BR>\n" );
document.write( "-----------------------------------------------------<BR>\n" );
document.write( "B	5	1	7	0.05	2<BR>\n" );
document.write( "Cutoffs:: z = +/-1.96<BR>\n" );
document.write( "test stat:: (7-5)/1 = 2<BR>\n" );
document.write( "Conclusion:: Since the test stat is in the reject interval, reject Ho.<BR>\n" );
document.write( "--------------------------------------------------------<BR>\n" );
document.write( "C	5	1	7	0.01	1 (High predicted)<BR>\n" );
document.write( "Cutoff:: z = 2.3264<BR>\n" );
document.write( "test stat:: 2<BR>\n" );
document.write( "Conclusion:: Since the test stat is not in the reject interval, do not reject Ho<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "D	5	1	7	0.01	2<BR>\n" );
document.write( "Cutoffs:: z = 2.5758<BR>\n" );
document.write( "test stat:: 2<BR>\n" );
document.write( "Conclusion:: Not in reject interval; do not reject Ho.<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-------------- <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );