document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1155589>Question 1155589</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For patients who have been given a diabetes test, blood-glucose readings are approximately normally distributed with mean 127 mg/dl and a standard deviation 8 mg/dl. Suppose that a sample of 4 patients will be selected and the sample mean blood-glucose level will be computed.\r<BR>\n" );
document.write( "\n" );
document.write( "According to the empirical rule, in 95 percent of samples the SAMPLE MEAN blood-glucose level will be between the lower-bound of _________ and the upper-bound of _________\r<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #778186 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=778186\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the standard error is sd/sqrt(n) so here, the sd of the sample mean is 8/sqrt(4)=4<BR>\n" );
document.write( "95% of the measurements will be +/- 2 sd  or 8 mg/dl away from the mean, so the interval is (119, 135) mg/dl </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );