document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=249754>Question 249754</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When Mendel conducted his famous genetics experiments with peas, one sample of offspring consisted of 438 green peas and 152 yellow peas.  Find the 90% confidence interval estimate for the percentage of yellow peas.\r<BR>\n" );
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document.write( "I tried this:  438+152= 590<BR>\n" );
document.write( "152/590= .2576     1-.2576= .7424<BR>\n" );
document.write( "90% confidence interval est. of yellow peas  ???? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #182060 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=182060\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When Mendel conducted his famous genetics experiments with peas, one sample of offspring consisted of 438 green peas and 152 yellow peas. Find the 90% confidence interval estimate for the percentage of yellow peas. <BR>\n" );
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document.write( "sample proportion = 152/(438+152) = 0.2576<BR>\n" );
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document.write( "standard error = invNorm(0.05)*sqrt(0.2576*0.7424/(438+152)) = 0.0296<BR>\n" );
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document.write( "90% CI: 0.2576 - 0.0296 < p < 0.2576 + 0.0296<BR>\n" );
document.write( "90% CI: 0.2280 < p < 0.2872<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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