document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=582857>Question 582857</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Students at Broward Community College spend an average of $60 per week for food with a standard deviation of 10. This distribution is normally distributed. <BR>\n" );
document.write( "	<BR>\n" );
document.write( "If 80 different students are randomly sampled; find the probability that their mean expenditure for food is more than $ 75. <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 #372256 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=372256\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Students at Broward Community College spend an average of $60 per week for food with a standard deviation of 10. This distribution is normally distributed. \r<BR>\n" );
document.write( "\n" );
document.write( "If 80 different students are randomly sampled; find the probability that their mean expenditure for food is more than $ 75. \r<BR>\n" );
document.write( "\n" );
document.write( "---------<BR>\n" );
document.write( "z(75) = (75-60)/[10/sqrt(80)] = 11.62<BR>\n" );
document.write( "----<BR>\n" );
document.write( "P(x > 75) = P(z > 11.62) = 1.677x10^(-31)<BR>\n" );
document.write( "=========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============= </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );