document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=696921>Question 696921</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE i need your help\r<BR>\n" );
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document.write( "Consider the accompanying contingency table, which presents the results of an advertising survey about the use of credit by Martan Oil Company customers.<BR>\n" );
document.write( "Number of Purchases at Gasoline Station Last Year<BR>\n" );
document.write( "Preferred Method of Payment<BR>\n" );
document.write( "0–4<BR>\n" );
document.write( "5–9<BR>\n" );
document.write( "10–14<BR>\n" );
document.write( "15–19<BR>\n" );
document.write( "&#8805;20<BR>\n" );
document.write( "Sum<BR>\n" );
document.write( "Cash<BR>\n" );
document.write( "150<BR>\n" );
document.write( "100<BR>\n" );
document.write( "25<BR>\n" );
document.write( "0<BR>\n" );
document.write( "0<BR>\n" );
document.write( "275<BR>\n" );
document.write( "Oil-Company Card<BR>\n" );
document.write( "50<BR>\n" );
document.write( "35<BR>\n" );
document.write( "115<BR>\n" );
document.write( "80<BR>\n" );
document.write( "70<BR>\n" );
document.write( "350<BR>\n" );
document.write( "National or Bank Credit Card<BR>\n" );
document.write( "50<BR>\n" );
document.write( "60<BR>\n" );
document.write( "65<BR>\n" );
document.write( "45<BR>\n" );
document.write( "5<BR>\n" );
document.write( "225<BR>\n" );
document.write( "Sum<BR>\n" );
document.write( "250<BR>\n" );
document.write( "195<BR>\n" );
document.write( "205<BR>\n" );
document.write( "125<BR>\n" );
document.write( "75<BR>\n" );
document.write( "850<BR>\n" );
document.write( "a. How many customers were surveyed?<BR>\n" );
document.write( "b. Why are these bivariate data? What type of variable is each one?<BR>\n" );
document.write( "c. How many customers preferred to use an oil-company credit card?<BR>\n" );
document.write( "d. How many customers made 20 or more purchases last year?<BR>\n" );
document.write( "can some one walk me through this PLEASE!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #429482 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=429482\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please post your data in contingency rectangle format.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );