document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934146>Question 934146</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An investigation of a sample of 64 BBA students indicate that the mean time spent on preparing for examination was 48 months and the standard deviation was 15 months. What is the 95% confidence interval time spent by all BBA student before the complete their examination </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567253 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=567253\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sample of 64: mean = 48 months and the standard deviation was 15 months.<BR>\n" );
document.write( "95% confidence interval time<BR>\n" );
document.write( ".......<BR>\n" );
document.write( "ME = 1.96(15/sqrt(64) = 3.675<BR>\n" );
document.write( "CI: 48 ± 3.675<BR>\n" );
document.write( "...<BR>\n" );
document.write( "CI: (44.325, 51.675)<BR>\n" );
document.write( "round as directed </SPAN>\n" );
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