document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187153>Question 187153</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I NEED HELP IN STATISTICS. PLEASE HELP. THANK YOU SO MUCH.\r<BR>\n" );
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document.write( "At mississippi University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standard deviation of 0.25. At &#945; = .05 in a two-tailed test, does this differ significantly from 3.25 (the mean GPA for all business school seniors at the university)? Explain your decision on the null hypothesis<BR>\n" );
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document.write( "Hypothesis Test: Mean vs. Hypothesized Value<BR>\n" );
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document.write( " 	3.2500 	hypothesized value	 <BR>\n" );
document.write( " 	3.3500 	mean problem4	 <BR>\n" );
document.write( " 	0.2500 	std. dev.	 	 <BR>\n" );
document.write( " 	0.0589 	std. error	 	 <BR>\n" );
document.write( " 	18 	n	 	 <BR>\n" );
document.write( " 	17 	df	 	 <BR>\n" );
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document.write( " 	1.70	 t	 	 <BR>\n" );
document.write( " 	.1079	 p-value (two-tailed)	 <BR>\n" );
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document.write( " 	3.2257 	confidence interval 95.% lower<BR>\n" );
document.write( " 	3.4743 	confidence interval 95.% upper<BR>\n" );
document.write( " 	0.1243 	   half-width	 <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 #140383 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=140383\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At mississippi University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standard deviation of 0.25. At &#945; = .05 in a two-tailed test, does this differ significantly from 3.25 (the mean GPA for all business school seniors at the university)? Explain your decision on the null hypothesis\r<BR>\n" );
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document.write( "Hypothesis Test: Mean vs. Hypothesized Value\r<BR>\n" );
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document.write( "3.2500 hypothesized value <BR>\n" );
document.write( "3.3500 mean problem4 <BR>\n" );
document.write( "0.2500 std. dev. <BR>\n" );
document.write( "0.0589 std. error <BR>\n" );
document.write( "18 n <BR>\n" );
document.write( "17 df \r<BR>\n" );
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document.write( "1.70 t <BR>\n" );
document.write( ".1079 p-value (two-tailed) \r<BR>\n" );
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document.write( "3.2257 confidence interval 95.% lower<BR>\n" );
document.write( "3.4743 confidence interval 95.% upper<BR>\n" );
document.write( "0.1243 half-width <BR>\n" );
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document.write( "Ho: u = 3.25<BR>\n" );
document.write( "Ha: u is not equal to 3.25 (2-tailed test)<BR>\n" );
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document.write( "Conclusion: Since the p-value is greater than alpha = 5%,<BR>\n" );
document.write( "Fail to Reject Ho.<BR>\n" );
document.write( "The test does not provide evidence to reject the belief that<BR>\n" );
document.write( "the GPA is 3.25<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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