document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136384>Question 136384</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At &#945; = .05, does vehicle type vary by mall location? (Data are from a project by MBA students Steve Bennett, Alicia Morais, Steve Olson, and Greg Corda.)<BR>\n" );
document.write( "Vehicle Type Somerset Oakland Great Lakes Jamestown Row Total<BR>\n" );
document.write( "Car             44      49         36        64       193<BR>\n" );
document.write( "Minivan         21      15         18        13        67<BR>\n" );
document.write( "Full-sized Van   2       3          3        2         10<BR>\n" );
document.write( "SUV             19      27         26        12        84<BR>\n" );
document.write( "Truck           14       6         17         9        46<BR>\n" );
document.write( "Col Total       100     100       100         100      400 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #99895 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=99895\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. At alph=.05, does vehicle type vary by mall location? <BR>\n" );
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document.write( "State hypothesis<BR>\n" );
document.write( "Ho: vehicle type and mall location are independent<BR>\n" );
document.write( "Ha: they are dependent<BR>\n" );
document.write( "---------------------------, <BR>\n" );
document.write( "show degree of freedom<BR>\n" );
document.write( "(5-1)(4-1) = 12<BR>\n" );
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document.write( "find critical value of chisquare<BR>\n" );
document.write( "critical value for two-tail Chi-Sq test with alpha = 5% and df=12<BR>\n" );
document.write( "4.404 and 23.337<BR>\n" );
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document.write( "and interpret p-value<BR>\n" );
document.write( "p-value = 0.0172<BR>\n" );
document.write( "Only 0.0172 of test results could give stronger support for rejecting Ho.<BR>\n" );
document.write( "p-value is less that 5% so reject Ho<BR>\n" );
document.write( "vehicle type and mall location are dependent.<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "Vehicle type,Somerset,Oakland,Greatlakes,Jamestown,Row Total<BR>\n" );
document.write( "Car,44,49,36,64,193<BR>\n" );
document.write( "Minivan,21,15,18,13,67<BR>\n" );
document.write( "Full-sizedVan,2,3,3,2,10<BR>\n" );
document.write( "SUV,19,27,26,12,84<BR>\n" );
document.write( "Truck,14,6,17,9,45<BR>\n" );
document.write( "Col Total,100,100,100,100,400\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );