document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269644>Question 269644</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 	A survey of 300 fatal accidents showed that 123 were alcohol related. Find the point estimate for the population proportion, the margin of error for a 98% confidence and then construct to the 98% confidence interval for the population proportion p. \r<BR>\n" );
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document.write( "a.	Find the margin of error E.   <BR>\n" );
document.write( "      Round E to three decimal places\r<BR>\n" );
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document.write( "b.	Construct a 95% confidence interval for the population proportion p of all Twinkle bulbs.   <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 #197614 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=197614\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A survey of 300 fatal accidents showed that 123 were alcohol related. <BR>\n" );
document.write( "Find the point estimate for the population proportion,<BR>\n" );
document.write( "Ans: 123/300 = 0.41<BR>\n" );
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document.write( "the margin of error for a 98% confidence<BR>\n" );
document.write( "E = invNorm(0.99)sqrt(0.41*0.59/300) = 2.3263*0.284 = 0.0661<BR>\n" );
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document.write( "and then construct the 98% confidence interval for the population proportion p.<BR>\n" );
document.write( "CI: 0.41-0.0661 < p < 0.41+0.0661<BR>\n" );
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document.write( "Follow the procedure above to answer \"a\" and \"b\" below.<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "a. Find the margin of error E. <BR>\n" );
document.write( "Round E to three decimal places <BR>\n" );
document.write( "b. Construct a 95% confidence interval for the population proportion p of all Twinkle bulbs.  </SPAN>\n" );
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