document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1185507>Question 1185507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The method of tree-ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.<BR>\n" );
document.write( "1,306	1,243	1,180	1,215	1,268	1,316	1,275	1,317	1,275<BR>\n" );
document.write( "A button hyperlink to the SALT program that reads: Use SALT.<BR>\n" );
document.write( "(a)<BR>\n" );
document.write( "Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.)<BR>\n" );
document.write( "x<BR>\n" );
document.write( "=	<BR>\n" );
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document.write( " A.D.<BR>\n" );
document.write( "s	=	<BR>\n" );
document.write( " yr<BR>\n" );
document.write( "(b)<BR>\n" );
document.write( "When finding an 90% confidence interval, what is the critical value for confidence level? (Give your answer to three decimal places.)<BR>\n" );
document.write( "tc = <BR>\n" );
document.write( "What is the maximal margin of error when finding a 90% confidence interval for the mean of all tree-ring dates from this archaeological site? (Round your answer to the nearest whole number.)<BR>\n" );
document.write( "E = <BR>\n" );
document.write( "Find a 90% confidence interval for the mean of all tree-ring dates from this archaeological site. (Round your answers to the nearest whole number.)<BR>\n" );
document.write( "lower limit	<BR>\n" );
document.write( " A.D.<BR>\n" );
document.write( "upper limit	<BR>\n" );
document.write( " A.D. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #849635 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52858)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=849635\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "Unreadable format.\r<BR>\n" );
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document.write( "The reader can break/spoil his or her eyes reading it.\r<BR>\n" );
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