document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042482>Question 1042482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A laboratory in Florida is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 80 healthy residents has a mean chloride level of 99 mEq/L. If it is known that the chloride levels in healthy individuals residing in Florida have a standard deviation of 38 mEq/L, find a 99% confidence interval for the true mean chloride level of all healthy Florida residents.\r<BR>\n" );
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document.write( "so what is the lower limit and upper limit?\r<BR>\n" );
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document.write( "thanks for ur helping </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657695 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=657695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the ci is the interval (mean +/- t (0.995,df=79)*s/sqrt(n))<BR>\n" );
document.write( "the t=2.64, s=38, n=80<BR>\n" );
document.write( "99+/-2.64*38/sqrt(80); interval itself is 11.22<BR>\n" );
document.write( "(88,110) or (87.88,110.22)<BR>\n" );
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