document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309563>Question 309563</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a population has a normal distribution with m=7 and o=9, and we take sample size of 10, find the probability that the mean of the means ,mx will be between P(6< mx <8) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #221446 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=221446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a population has a normal distribution with m=7 and o=9, and we take sample size of 10, find the probability that the mean of the means ,mx will be between P(6< mx <8)<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "z(6) = (6-7)/[9/sqrt(10)] = -0.3514<BR>\n" );
document.write( "z(8) = (8-7)/[9/sqrt(10)] = +0.3514<BR>\n" );
document.write( "------<BR>\n" );
document.write( "P(6 < x-bar < 8) = P(-0.3514 < z < +0.3514) = 0.2747<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" );