document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182735>Question 1182735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the sample data and confidence level given below to complete part a.\r<BR>\n" );
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document.write( "A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll, n=990 and x=580 who said​ \"yes.\" Use a 99% confidence level.\r<BR>\n" );
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document.write( "a) Find the best point estimate of the population proportion p.\r<BR>\n" );
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document.write( "(Round to three decimal places as​ needed.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #849906 by </B><A HREF=/tutors/aboutme.mpl?userid=CPhill><B>CPhill(1987)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CPhill><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=CPhill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=849906\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The best point estimate of the population proportion *p* is simply the sample proportion.  It's calculated as:\r<BR>\n" );
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document.write( "Sample proportion (p̂) = (Number of successes) / (Sample size)\r<BR>\n" );
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document.write( "In this case:\r<BR>\n" );
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document.write( "p̂ = x / n = 580 / 990 ≈ 0.586\r<BR>\n" );
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document.write( "So, the best point estimate of the population proportion *p* is approximately **0.586** or **58.6%**.<BR>\n" );
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