document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=175565>Question 175565</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0072966939/algebrahomeworkh>Applied Statistics in Business and Economics</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 10.52 One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At &#945; = .10, is there a significant difference in the mean scores listed below? (a) State the hypotheses. (b) State the decision rule and sketch it. (c) Find the test statistic. (d) Make a decision. (e) Use Excel to find the p-value and interpret it.\r<BR>\n" );
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document.write( "Exam Scores for Accounting Students<BR>\n" );
document.write( "Statistic			 Distance 			Classroom<BR>\n" );
document.write( "Mean scores		 ¯x1 = 9.1			 ¯x2 = 10.3<BR>\n" );
document.write( "Sample std. dev. 		s1 = 2.4 			s2 = 2.5<BR>\n" );
document.write( "Number of students 	n1 = 20 			n2 = 20<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 #130656 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=130656\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One group of accounting students took a distance learning class, while another group took the same course in a traditional classroom. At &#945; = .10, is there a significant difference in the mean scores listed below? <BR>\n" );
document.write( "(a) State the hypotheses.<BR>\n" );
document.write( "Ho: u1 = u2<BR>\n" );
document.write( "Ha: u1 is not equal to u2<BR>\n" );
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document.write( "(b) State the decision rule and sketch it.<BR>\n" );
document.write( "Critical value for 2-tail Z-test with alpha=0.10 is +/-1.645<BR>\n" );
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document.write( "(c) Find the test statistic. <BR>\n" );
document.write( "z(9.1-10.3) = -1.5485<BR>\n" );
document.write( "(d) Make a decision.<BR>\n" );
document.write( "Fail to Reject Ho. <BR>\n" );
document.write( "(e) Use Excel to find the p-value and interpret it.<BR>\n" );
document.write( "p-value = 0.1215<BR>\n" );
document.write( "At least 12.15% of test results could have provided stronger <BR>\n" );
document.write( "evidence for rejecting Ho.<BR>\n" );
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document.write( "Note: I used a 2-Sample ZTest on a TI-83 calculator to get these results.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( "Exam Scores for Accounting Students<BR>\n" );
document.write( "Statistic Distance Classroom<BR>\n" );
document.write( "Mean scores ¯x1 = 9.1 ¯x2 = 10.3<BR>\n" );
document.write( "Sample std. dev. s1 = 2.4 s2 = 2.5<BR>\n" );
document.write( "Number of students n1 = 20 n2 = 20\r<BR>\n" );
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