document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=449562>Question 449562</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming the standard deviation of the population is .8 years, find the 95% confidence interval of the population mean.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #309330 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=309330\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A survey of 30 adults found that the mean age of a person’s primary vehicle is 5.6 years. Assuming the standard deviation of the population is .8 years, find the 95% confidence interval of the population mean.<BR>\n" );
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document.write( "x-bar = 5.6 yrs<BR>\n" );
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document.write( "ME = 1.96 = 0.2863<BR>\n" );
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document.write( "95% CI: 5.6-0.2863 < u < 5.6+0.2863<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H. \r<BR>\n" );
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