document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=872919>Question 872919</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A random sample of 100 rates of return on real estate investments were<BR>\n" );
document.write( "computed and recorded. Assuming that the standard deviation of all rates of<BR>\n" );
document.write( "return on real estate investments is 2.5% and sample mean is 12.<BR>\n" );
document.write( "(a) Estimate the mean rate of return on all real estate investments with 95%<BR>\n" );
document.write( "confidence. <BR>\n" );
document.write( "(b) Discuss the assumptions of binomial distribution.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #526519 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=526519\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)\r<BR>\n" );
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document.write( "CI is:\r<BR>\n" );
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document.write( "Lower limit 12 - 1.96(2.5)/10 = 11.51\r<BR>\n" );
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document.write( "Upper limit: 12 + 1.96(2.5)/10 = 12.49\r<BR>\n" );
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document.write( "Answer: (11.51,12.49)\r<BR>\n" );
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document.write( "You can ask me more at:\r<BR>\n" );
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document.write( "mthman@gmail.com\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
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