document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1086332>Question 1086332</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A random sample of 156 fields of durum wheat has a mean yield of 26.8 bushels per acre and a standard deviation of 8.0 bushels per acre. Create a confidence interval 99%. Find a) the Margin of Error, b) the confidence interval (written as an inequality),  c) the critical values and d) state whether it was a z or t distribution that you used. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #700569 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=700569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A random sample of 156 fields of durum wheat has a mean yield of 26.8 bushels per acre and a standard deviation of 8.0 bushels per acre. Create a confidence interval 99%. <BR>\n" );
document.write( "Find: <BR>\n" );
document.write( "a) the Margin of Error<BR>\n" );
document.write( "ME = 2.5758*8/sqrt(156) = 1.65<BR>\n" );
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document.write( "b) the confidence interval (written as an inequality)<BR>\n" );
document.write( "26.8-1.65 < u < 26.8+1.65<BR>\n" );
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document.write( "c) the critical values:: 2.5758<BR>\n" );
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document.write( "d) state whether it was a z or t distribution that you used.<BR>\n" );
document.write( "Ans:: z<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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