document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1051018>Question 1051018</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need some help on this problem please:\r<BR>\n" );
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document.write( "A geologist collects hand-specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of association between color and texture for these limestones? Explain your answer.\r<BR>\n" );
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document.write( "Texture	Color	Color	Color<BR>\n" );
document.write( "	Light	Medium	Dark<BR>\n" );
document.write( "Fine	4	20	8<BR>\n" );
document.write( "Medium	5	23	12<BR>\n" );
document.write( "Coarse	21	23	4\r<BR>\n" );
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document.write( "Thank you for ANY assistance!<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 #666615 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=666615\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We are asked to analyze an association between two categorical variables<BR>\n" );
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document.write( "We start by summing the rows and columns of our table<BR>\n" );
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document.write( "Fine --4 20 8---32 <BR>\n" );
document.write( "Medium 5 23 12--40<BR>\n" );
document.write( "Coarse 21 23 4--48<BR>\n" );
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document.write( "-------30-66-24-120<BR>\n" );
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document.write( "From the above information we can calculate the row and column percentages<BR>\n" );
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document.write( "Fine --0.125-0.625-0.25-100.0<BR>\n" );
document.write( "Medium-0.125-0.575-0.30-100.0<BR>\n" );
document.write( "Coarse-0.4375-0.479-0.08-100.00<BR>\n" );
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document.write( "-------0.25---0.55--0.20-100.0<BR>\n" );
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document.write( "Note that our two categorical variables(texture and color) are related in the sample if at least two rows of percentages noticeably differ in the pattern of row percents<BR>\n" );
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document.write( "the pattern of percentages is the same, therefore<BR>\n" );
document.write( "texture and color are not related<BR>\n" );
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