document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=324063>Question 324063</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help\r<BR>\n" );
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document.write( "An experimental egg farm is raising chickens to produce low cholesterol eggs. A lab tested 25 randomly selected eggs and found that the mean amount of cholesterol was   190 mg. The sample standard deviation was found to be s = 18.0 mg on this group. Assume that the population is normally distributed. \r<BR>\n" );
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document.write( "a.  Find the margin of error for a 95% confidence interval. Round your answer to the nearest tenths. 	\r<BR>\n" );
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document.write( "b.Find a 95% confidence interval for the mean &#61549; cholesterol content for all experimental eggs. Assume that the population is normally distributed. <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 #231917 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=231917\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An experimental egg farm is raising chickens to produce low cholesterol eggs. A lab tested 25 randomly selected eggs and found that the mean amount of cholesterol was 190 mg. The sample standard deviation was found to be s = 18.0 mg on this group. Assume that the population is normally distributed. <BR>\n" );
document.write( "a. Find the margin of error for a 95% confidence interval. Round your answer to the nearest tenths.<BR>\n" );
document.write( "ME = ts/sqrt(n)<BR>\n" );
document.write( "t for 0.975 with df = 24 = 2.0639<BR>\n" );
document.write( "s = 18<BR>\n" );
document.write( "n = 25<BR>\n" );
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document.write( "ME = 2.0639*18/sqrt(25) = 7.43<BR>\n" );
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document.write( "b.Find a 95% confidence interval for the mean &#61549; cholesterol content for all experimental eggs. Assume that the population is normally distributed. <BR>\n" );
document.write( "95$ CI: 190-7.43 < u < 190+7.43<BR>\n" );
document.write( "182.47 < u < 197.43<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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