document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=296773>Question 296773</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the mean weight of trucks traveling on a particular section of a highway is not known. A highway inspector needs an estimate of the mean.  He selescts a random sample of 49 trucks passing the weight station and finds the mean is 15.8 tons with a sample standard deviation of 3.8 tons.  in tons and rounding to the closest 0.1 ton, what is the 95 percent interval for the population mean?\r<BR>\n" );
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document.write( "14.7 and 16.9 tons<BR>\n" );
document.write( "13.2 and 17.6<BR>\n" );
document.write( "10.0 and 20.0 tons<BR>\n" );
document.write( "16.1 and 18.1 tons<BR>\n" );
document.write( "none of the above </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #213784 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=213784\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the mean weight of trucks traveling on a particular section of a highway is not known. A highway inspector needs an estimate of the mean. He selescts a random sample of 49 trucks passing the weight station and finds the mean is 15.8 tons with a sample standard deviation of 3.8 tons. in tons and rounding to the closest 0.1 ton, what is the 95 percent interval for the population mean?<BR>\n" );
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document.write( "Using both the t-dist and the z-dist on a TI<BR>\n" );
document.write( "caluculator I get the following:<BR>\n" );
document.write( "14.7 < u < 16.9<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " <BR>\n" );
document.write( "14.7 and 16.9 tons<BR>\n" );
document.write( "13.2 and 17.6<BR>\n" );
document.write( "10.0 and 20.0 tons<BR>\n" );
document.write( "16.1 and 18.1 tons<BR>\n" );
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