document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452468>Question 452468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An accounting professor claims that no more than one-quarter of undergraduate business students will major in accounting.  What is the probablity that in a random sample of 1,200 undergraduate business students, 336 or more will major in accounting? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311063 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=311063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An accounting professor claims that no more than one-quarter of undergraduate business students will major in accounting. What is the probablity that in a random sample of 1,200 undergraduate business students, 336 or more will major in accounting?<BR>\n" );
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document.write( "mean = np = 0.25(1200) = 300<BR>\n" );
document.write( "std = sqrt(npq) = sqrt[300*0.75] = 15<BR>\n" );
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document.write( "z(336) = (336-300)/[15/sqrt(1200)] = 83<BR>\n" );
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document.write( "P(phat > 336) = p(z > 83) is practically zero.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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