document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=131715>Question 131715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is not in a textbook. Can you help?\r<BR>\n" );
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document.write( "The owner of a car dealership wants to determin whether there is a relation between the income level and the type of vehicle purchased in their dealership. He randomly sampled 500 car buyers and obtained the folliwing data:\r<BR>\n" );
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document.write( "Income level        SUV/minivan         Midsize           compact<BR>\n" );
document.write( "0-$30K               13                 71               106<BR>\n" );
document.write( "$30-$60K             33                  76              45<BR>\n" );
document.write( "$60-+                66                 59               31\r<BR>\n" );
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document.write( "At the .05 level of significance determin whether there is a relation between the income level and the type of vehicl purchased. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #96156 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=96156\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The owner of a car dealership wants to determin whether there is a relation between the income level and the type of vehicle purchased in their dealership. He randomly sampled 500 car buyers and obtained the folliwing data: <BR>\n" );
document.write( "income.level SUV/minivan Midsize compact<BR>\n" );
document.write( "0-$30K........ 13......... 71..... 106<BR>\n" );
document.write( "$30-$60K...... 33......... 76...... 45<BR>\n" );
document.write( "$60-+......... 66......... 59...... 31 <BR>\n" );
document.write( "At the .05 level of significance determine whether there is a relation between the income level and the type of vehicle purchased.<BR>\n" );
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document.write( "Ho: the factors are independent<BR>\n" );
document.write( "Ha: the factors are dependent<BR>\n" );
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document.write( "Run a Ch-Sq Test on the data with alpha=5%; df= 2*2=4<BR>\n" );
document.write( "Critical value = +/- 2.776<BR>\n" );
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document.write( "Test statistic: 85.301<BR>\n" );
document.write( "p-value = 1.309x10^-17<BR>\n" );
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document.write( "Conclusion: Since p-value is less than 5%, Reject Ho.<BR>\n" );
document.write( "The factors are dependent.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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