document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077569>Question 1077569</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a clinical trial, 34 out of 850 patients taking a prescription drug complained of flulike symptoms. Suppose that it is known that 2.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.8% of this drug's users experience flulike symptoms as a side effect at the &#945;=0.1 level of significance?\r<BR>\n" );
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document.write( "(a) 1.) what are the null and alternative hypotheses?<BR>\n" );
document.write( "H0:p _ _ versus H1:p _ _\r<BR>\n" );
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document.write( "2. what is the P-value?\r<BR>\n" );
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document.write( "3.) choose the correct answer:\r<BR>\n" );
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document.write( "	Since P-value >&#945;, reject the null hypothesis and conclude that there <BR>\n" );
document.write( "Is not sufficient evidence that more than 2.8% of the users experience flulike symptoms.<BR>\n" );
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document.write( "B.<BR>\n" );
document.write( "Since P-valuele<a &#945;, do  not reject the null hypothesis and conclude that there is sufficient evidence that more than 2.8% of the users experience flulike symptoms.<BR>\n" );
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document.write( "C.<BR>\n" );
document.write( "Since P-value <&#945; reject the null hypothesis and conclude that there is sufficient evidence that more than 2.8% of the users experience flulike symptoms.<BR>\n" );
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document.write( "D.<BR>\n" );
document.write( "Since P-value>&#945;, do not rejectdo not reject the null hypothesis and conclude that there is not <BR>\n" );
document.write( "sufficient evidence that more than 2.8% of the users experience flulike symptoms.\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #692203 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=692203\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho p<=0.028<BR>\n" );
document.write( "Ha p>0.028<BR>\n" );
document.write( "alpha is 0.1<BR>\n" );
document.write( "test stat is one sample proportion z-test<BR>\n" );
document.write( "critical value z>1.28<BR>\n" );
document.write( "z=(0.04-0.028)/SE; SE is sqrt {(p*(1-p))/n}=sqrt (.028*0.972/850}=0.0057<BR>\n" );
document.write( "z=0.012/0.0057=2.12<BR>\n" );
document.write( "reject Ho, there is sufficient evidence that greater than 2.8% exhibit flu-like symptoms.<BR>\n" );
document.write( "p-value is 0.017 </SPAN>\n" );
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