document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1039783>Question 1039783</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 8 squirrels were found to have an average weight of 10.3 ounces with a sample standard deviation is 0.15. Find the 95% confidence interval of the true mean weight.<BR>\n" );
document.write( "	A.	<BR>\n" );
document.write( "(9.81, 10.79)<BR>\n" );
document.write( "	B.	<BR>\n" );
document.write( "(10.13, 10.47)<BR>\n" );
document.write( "	C.	<BR>\n" );
document.write( "(10.25, 10.35)<BR>\n" );
document.write( "	D.	<BR>\n" );
document.write( "(10.16, 10.44)<BR>\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 #654524 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=654524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 95% confidence interval itself is+/- t(df=7,0.975)+/-0.15/sqrt(8)<BR>\n" );
document.write( "That is +/-2.365/(sqrt)8/0.15=+/-2.365*0.15/sqrt (8)=0.126<BR>\n" );
document.write( "That is on either side of the mean of 10.3, so it is (10.174,10.426).  This is closest to D.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );