document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=175855>Question 175855</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A TV special said there is a 10 per cent incidence of sexually transmitted disease (STD) among all U.S. teens. A reporter for the Rockville Bugle, looking for a story, surveyed 260 randomly chosen teenagers, and found that 39 had been to a clinic for STD treatment. Use a right-tail test at &#945; = .05. <BR>\n" );
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document.write( "The test statistic is<BR>\n" );
document.write( "The critical value is<BR>\n" );
document.write( "The p-value is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #130978 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=130978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A TV special said there is a 10 per cent incidence of sexually transmitted disease (STD) among all U.S. teens. A reporter for the Rockville Bugle, looking for a story, surveyed 260 randomly chosen teenagers, and found that 39 had been to a clinic for STD treatment. Use a right-tail test at &#945; = .05. <BR>\n" );
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document.write( "The test statistic is<BR>\n" );
document.write( "z(39/206) = ((39/206)-(0.10))/sqrt[0.1*0.9/260]= 4.2733<BR>\n" );
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document.write( "The critical value is 1.645<BR>\n" );
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document.write( "The p-value is<BR>\n" );
document.write( "P(z>4.2733) = 0.000009637....<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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