document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042723>Question 1042723</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the confidence interval specified.\r<BR>\n" );
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document.write( "The mean score,x , on an aptitude test for a random sample of 5 students was 73. Assuming that &#963;=15 construct a 95.44% confidence interval for the mean score, &#956;  of all students taking the test. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657756 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=657756\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Find the confidence interval specified. <BR>\n" );
document.write( "The mean score,x , on an aptitude test for a random sample of 5 students was 73. Assuming that &#963;=15 construct a 95.44% confidence interval for the mean score, &#956; of all students taking the test. <BR>\n" );
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document.write( "(1-0.9544)/2 = 0.0228<BR>\n" );
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document.write( "-invNorm(0.0228) = 1.9991<BR>\n" );
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document.write( "x-bar = 73<BR>\n" );
document.write( "ME = z*s/sqrt(n) = 1.9991*(15/sqrt(73) = 3.51<BR>\n" );
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document.write( "95.44% CI:: 73-3.51 < u < 73+3.51<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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