document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182048>Question 182048</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi can you please help me solve for this problem from book: Doane&#8722;Seward: Applied Statistics in Business and Economics, chapter 10:\r<BR>\n" );
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document.write( "Blockbuster is testing a new policy of waiving all late fees on DVD rentals using a sample of 10 randomly chosen customers. (a) At &#945; = .10, does the data show that the mean number of monthly rentals has increased? (b) Is the decision close? (c) Are you convinced?\r<BR>\n" );
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document.write( "Customer: 1,2,3,4,5,6,7,8,9,10\r<BR>\n" );
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document.write( "No Late Fee: 14,12,14,13,10,13,12,10,13,13\r<BR>\n" );
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document.write( "Late Fee: 10,7,10,13,9,14,12,7,13,9\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136745 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=136745\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> book: Doane&#8722;Seward: Applied Statistics in Business and Economics, chapter 10: <BR>\n" );
document.write( "Blockbuster is testing a new policy of waiving all late fees on DVD rentals using a sample of 10 randomly chosen customers. <BR>\n" );
document.write( "(a) At &#945; = .10, does the data show that the mean number of monthly rentals has increased?<BR>\n" );
document.write( "Ho: u(d) = 0<BR>\n" );
document.write( "Ha: u(d) > 0<BR>\n" );
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document.write( "The differences: 4,5,4,0,1,-1,0.3.0.4<BR>\n" );
document.write( "mean of the sample: u(d) bar = 20/10 = 2<BR>\n" );
document.write( "stand Dev of the sample; 2.211<BR>\n" );
document.write( "Test statistic: t(2) = 2/[2.211/sqrt(10)] = 2.86<BR>\n" );
document.write( "p-value: P(t > 2.86 with df = 9) = 0.009<BR>\n" );
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document.write( "(b) Is the decision close?<BR>\n" );
document.write( "No since alpha = 10% and p= 0.9%<BR>\n" );
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document.write( "(c) Are you convinced? <BR>\n" );
document.write( "I'll leave that to you.<BR>\n" );
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document.write( "Customer: 1,2,3,4,5,6,7,8,9,10 <BR>\n" );
document.write( "No Late Fee: 14,12,14,13,10,13,12,10,13,13 <BR>\n" );
document.write( "Late Fee:... 10, 7,10,13, 9,14,12,7,13,9 <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( "t(2) = 2/ </SPAN>\n" );
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