document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=868643>Question 868643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For a random sample of 22 people who took a test, the mean score is 85.1 and the standard deviation is 12.9. What is the 90% confidence interval for the mean score of all the test takers, assuming that the population is normally distributed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #523701 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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/cgi-bin/show-face.mpl?user=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=523701\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ME =1.645(12.9/sqrt(22))<BR>\n" );
document.write( "CI: 85.1-ME < u <  85.1 + ME<BR>\n" );
document.write( " </SPAN>\n" );
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