document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=484930>Question 484930</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am really struggling with this question & have to expres why it does or does not support the claim , if anyone can help me I appreciate it greatly!\r<BR>\n" );
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document.write( "In a recent poll, it was found that 43% of registered U.S. voters would vote for the incumbent president. If 100 registered voters were sampled randomly, it was found that 35% would vote of the incumbent. Test the claim that the actual proportion is 43%. Use &#61537; = 0.01. (Round phat to 2 decimal places.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #331749 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=331749\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a recent poll, it was found that 43% of registered U.S. voters would vote for the incumbent president.<BR>\n" );
document.write( " If 100 registered voters were sampled randomly, it was found that 35% would vote for the incumbent.<BR>\n" );
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document.write( "phat = 0.35\r<BR>\n" );
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document.write( " Test the claim that the actual proportion is 43%. Use &#61537; = 0.01. (Round phat to 2 decimal places.)<BR>\n" );
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document.write( "Ho: p = 0.43 (claim)<BR>\n" );
document.write( "Ha: p is not equal to 0.43<BR>\n" );
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document.write( "z(0.35) = (0.35-0.43)/sqrt[0.43*0.57/100] = -1.6159<BR>\n" );
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document.write( "p-value = 2*P(z < -1.6159) = 0.1061<BR>\n" );
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document.write( "Since the p-value is greater than 1%, fail to reject Ho<BR>\n" );
document.write( "at the 1% level.<BR>\n" );
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document.write( "The test results support the claim.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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