document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1076939>Question 1076939</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A simple random sample of 50 women has an average height of 64.1 inches. Assume it is known that the standard deviation of heights for all women in this population is 3.7 inches.\r<BR>\n" );
document.write( "\n" );
document.write( "(a) Find a 95% confidence level for the mean height of women in the entire population.\r<BR>\n" );
document.write( "\n" );
document.write( "_________< &#956; <_______\r<BR>\n" );
document.write( "\n" );
document.write( "(b) The margin of error for this confidence interval is: </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691533 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=691533\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> t df=49, 0.975=2.01<BR>\n" );
document.write( "interval is +/- 2.01*s/sqrt(n)=1.05<BR>\n" );
document.write( "add and subtract from mean<BR>\n" );
document.write( "(63.05, 65.15) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );