document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=255231>Question 255231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me this one question..I am lost...<BR>\n" );
document.write( "Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, the Z score on the comparison distribution for the sample score, and your conclusion. Assume that all populations are normally distributed.<BR>\n" );
document.write( "Study	Population	Sample Score	p	Tails of Test<BR>\n" );
document.write( "	µ	s			<BR>\n" );
document.write( "A	5	1	7	.05	1 (high predicted)<BR>\n" );
document.write( "B	5	1	7	.05	2<BR>\n" );
document.write( "C	5	1	7	.01	1 (high predicted)<BR>\n" );
document.write( "D	5	1	7	.01	2\r<BR>\n" );
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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 #187558 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=187558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, the Z score on the comparison distribution for the sample score, and your conclusion. Assume that all populations are normally distributed.<BR>\n" );
document.write( "Study Population Sample Score p Tails of Test<BR>\n" );
document.write( "µ s <BR>\n" );
document.write( "A 5 1 7 .05 1 (high predicted)<BR>\n" );
document.write( "B 5 1 7 .05 2<BR>\n" );
document.write( "C 5 1 7 .01 1 (high predicted)<BR>\n" );
document.write( "D 5 1 7 .01 2 <BR>\n" );
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document.write( "Are you saying the following ?<BR>\n" );
document.write( "For study B the mean is 5, sample std. is 1, sample mean is 7, level<BR>\n" );
document.write( "of significance is 5%, the test is 2-tail<BR>\n" );
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document.write( "If so, the critical values are: z = +/-1.96<BR>\n" );
document.write( "If so, the test statistic is z=(7-5)/[1/(sqrt(5)] = 4.47<BR>\n" );
document.write( "Then you reject Ho because the test statistic is in the rejection interval.<BR>\n" );
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document.write( "Am I reading you correctly?<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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