document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=970171>Question 970171</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 69% of new cars purchased in Australia have automatic transmission. Find the probability that less than 40 new cars from a random sample of 50 have automatic transmission.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #593116 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=593116\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a one sample proportion test\r<BR>\n" );
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document.write( "SD= sqrt {0.69 *0.31/50} = 0.0654\r<BR>\n" );
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document.write( "z= .80-.69/0.0654\r<BR>\n" );
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document.write( "z=1.681\r<BR>\n" );
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document.write( "Prob > than that is 0.097\r<BR>\n" );
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document.write( "Probability < than that is 0.903.  \r<BR>\n" );
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