document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141845>Question 141845</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An experimental medication is administered to 16 people who suffer from migraines. After an<BR>\n" );
document.write( "hour, 10 say they feel better. Is the medication effective (i.e., is the percent who feel better greater<BR>\n" );
document.write( "than 50 percent)? Use &#945; = .10, explain fully, and show all steps.<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 #103331 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=103331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An experimental medication is administered to 16 people who suffer from migraines. <BR>\n" );
document.write( "After an hour, 10 say they feel better. <BR>\n" );
document.write( "Is the medication effective (i.e., is the percent who feel better greater<BR>\n" );
document.write( "than 50 percent)? <BR>\n" );
document.write( "Use &#945; = .10, explain fully, and show all steps.<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "Ho: p = 0.5<BR>\n" );
document.write( "Ha: p > 0.5<BR>\n" );
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document.write( "Critical value for and alpha = 10%: z = 1.282<BR>\n" );
document.write( "Test statistic:<BR>\n" );
document.write( "z(10/16) = (0.625-0.5)/sqrt(0.5*0.5/16)] = 1.00<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Conclusion:<BR>\n" );
document.write( "Since the test statistic is not in the reject interval to the right of 1.282,<BR>\n" );
document.write( "Fail to reject Ho.  The test results show that the medication is not effective.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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