document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1011625>Question 1011625</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please help?\r<BR>\n" );
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document.write( "In a test of the effectiveness of garlic for lowering&#8203; cholesterol, 45 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol&#8203; (in mg/dL) have a mean of 3.3 and a standard deviation of 15.2. Complete parts&#8203; (a) and&#8203; (b) below.\r<BR>\n" );
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document.write( "A.<BR>\n" );
document.write( "What is the best point estimate of the population mean net change in LDL cholesterol after the garlic&#8203; treatment?<BR>\n" );
document.write( "The best point estimate is  &#8203;mg/dL.<BR>\n" );
document.write( "&#8203;(Type an integer or a&#8203; decimal.)\r<BR>\n" );
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document.write( "B.<BR>\n" );
document.write( "Construct a 99&#8203;% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL&#8203; cholesterol?<BR>\n" );
document.write( "What is the confidence interval estimate of the population mean mu&#956;&#8203;?\r<BR>\n" );
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document.write( "___ &#8203;mg/< than<mu&#956;less than<___&#8203;mg/dL<BR>\n" );
document.write( "&#8203;(Round to two decimal places as&#8203; needed.)\r<BR>\n" );
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document.write( "What does the confidence interval suggest about the effectiveness of the&#8203; treatment?<BR>\n" );
document.write( "A.<BR>\n" );
document.write( "The confidence interval limits contain &#8203;0, suggesting that the garlic treatment did affect the LDL cholesterol levels.<BR>\n" );
document.write( "B.<BR>\n" );
document.write( "The confidence interval limits contain &#8203;0, suggesting that the garlic treatment did not affect the LDL cholesterol levels.<BR>\n" );
document.write( "C.<BR>\n" );
document.write( "The confidence interval limits do not contain &#8203;0, suggesting that the garlic treatment did affect the LDL cholesterol levels.<BR>\n" );
document.write( "D.<BR>\n" );
document.write( "The confidence interval limits do not contain &#8203;0, suggesting that the garlic treatment did not affect the LDL cholesterol levels.\r<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 #627352 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=627352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a test of the effectiveness of garlic for lowering&#8203; cholesterol, 45 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol&#8203; (in mg/dL) have a mean of 3.3 and a standard deviation of 15.2. <BR>\n" );
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document.write( "Ho: u  = 0<BR>\n" );
document.write( "Ha: u #  0 (claim that the levels changed) \r<BR>\n" );
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document.write( "Complete parts&#8203; (a) and&#8203; (b) below. \r<BR>\n" );
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document.write( "A.What is the best point estimate of the population mean net change in LDL cholesterol after the garlic&#8203; treatment?<BR>\n" );
document.write( "The best point estimate is 3.3 &#8203;mg/dL.<BR>\n" );
document.write( "&#8203;--- <BR>\n" );
document.write( "B.Construct a 99&#8203;% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. <BR>\n" );
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document.write( "What does the confidence interval suggest about the effectiveness of garlic in reducing LDL&#8203; cholesterol?<BR>\n" );
document.write( "sample mean = 3.3 ; margin of error = 2.5758*15.2/sqrt(45) = 5.84<BR>\n" );
document.write( "99%CI:: 3.3-5.84 < u < 3.3+5.84<BR>\n" );
document.write( "99%CI:: -2.54 < u < 9.14<BR>\n" );
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document.write( "What is the confidence interval estimate of the population mean mu&#956;&#8203;? <BR>\n" );
document.write( "___ &#8203;mg/< than &#8203;(Round to two decimal places as&#8203; needed.) \r<BR>\n" );
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document.write( "What does the confidence interval suggest about the effectiveness of the&#8203; treatment?\r<BR>\n" );
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document.write( "Ans: <BR>\n" );
document.write( "B.The confidence interval limits contain &#8203;0, suggesting that the garlic treatment did not affect the LDL cholesterol levels.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "---------\r<BR>\n" );
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