document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1115350>Question 1115350</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A simple random sample of 120SAT scores has a mean of 1500. Assume that scores have a standard deviation of 175.construct a 99% confidence interval estimate of the mean SAT score.<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 #730233 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=730233\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A simple random sample of 120 SAT scores has a mean of 1500. Assume that scores have a standard deviation of 175.construct a 99% confidence interval estimate of the mean SAT score.<BR>\n" );
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document.write( "u = 1500<BR>\n" );
document.write( "std = 175<BR>\n" );
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document.write( "sample mean = 1500<BR>\n" );
document.write( "ME = 2.5758*175 = 450.77<BR>\n" );
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document.write( "99% CI:: 1500-450.77 < u < 1500+450.77 <BR>\n" );
document.write( "99% CI:: 149.23 < u < 1950.77<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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