document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=172989>Question 172989</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A) What is the 90% confidence interval for the variance of exam scores for 28 algebra students, if the standard deviation of their last exam was 12.7? \r<BR>\n" );
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document.write( "B)A lawyer researched the average number of years served by 49 different justices on the Supreme Court. The average number of years served was 14.9 years with a standard deviation of 8.6 years. What is the 95% confidence interval for the average number of years served by all Supreme Court justices? \r<BR>\n" );
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document.write( "C)A high school math teacher thinks the variance on his next math test should be 125. When his class of 27 students takes the next test, they have a standard deviation of 133. The test value for this data would be 27.664. \r<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 #129419 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=129419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Do you still need help with these problems?<BR>\n" );
document.write( "I see they were posted a week ago.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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