document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1191523>Question 1191523</A>: <I><SPAN STYLE=\"word-break: break-all;\"> QUESTION 17\r<BR>\n" );
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document.write( "A disease has an incidence rate of 0.9%.  A test for the disease has a false positive rate of 4% and a false negative rate of 1%.  What is the probability that a person receiving a positive test actually has the disease? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #823331 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=823331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is an incidence rate of 9 per 1000 or 90 per 10000<BR>\n" );
document.write( "======D+=======D-====Total <BR>\n" );
document.write( "T+-----86.4---------99.1===185.5<BR>\n" );
document.write( "T-==== 3.6--------9810.9==9814.5<BR>\n" );
document.write( "Total==90=======9910===10000\r<BR>\n" );
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document.write( "true positive rate is 96% T+/D+(sensitive) and specificity D-/T- is 99%.<BR>\n" );
document.write( "If a person has a positive test (185.5) they have the disease (86.4) or 46.58% of the time. </SPAN>\n" );
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