document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=810592>Question 810592</A>: <I><SPAN STYLE=\"word-break: break-all;\"> H0: &#960; = .40<BR>\n" );
document.write( "H1: &#960; &#8800; .40\r<BR>\n" );
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document.write( "A sample of 120 observations revealed that p = 0.30. At the .05 significance level, can the null hypothesis be rejected?\r<BR>\n" );
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document.write( "(b)	<BR>\n" );
document.write( "Compute the value of the test statistic?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #488246 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=488246\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> H0: &#960; = .40<BR>\n" );
document.write( "H1: &#960; &#8800; .40 <BR>\n" );
document.write( "A sample of 120 observations revealed that p = 0.30. At the .05 significance level, can the null hypothesis be rejected?<BR>\n" );
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document.write( "(b) <BR>\n" );
document.write( "Compute the value of the test statistic? <BR>\n" );
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document.write( "z(0.30) = (0.30-0.40)/sqrt[0.4*0.6/120] = -2.2361<BR>\n" );
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document.write( "p-value = 2*p(z<-2.2361) = 2*normalcdf(-100,-2.2361) = 0.0253\r<BR>\n" );
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document.write( "Conclusion:<BR>\n" );
document.write( "Since the p-value is less than 5%, reject Ho.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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