document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=266751>Question 266751</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A state meat inspector in Iowa has been given the assignment of estimating the mean<BR>\n" );
document.write( "net weight of packages of ground chuck labeled “3 pounds.” Of course, he realizes that<BR>\n" );
document.write( "the weights cannot be precisely 3 pounds. A sample of 36 packages reveals the mean<BR>\n" );
document.write( "weight to be 3.01 pounds, with a standard deviation of 0.03 pounds.<BR>\n" );
document.write( "a. What is the estimated population mean?<BR>\n" );
document.write( "b. Determine a 95 percent confidence interval for the population mean.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195944 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=195944\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A state meat inspector in Iowa has been given the assignment of estimating the mean<BR>\n" );
document.write( "net weight of packages of ground chuck labeled “3 pounds.” Of course, he realizes that<BR>\n" );
document.write( "the weights cannot be precisely 3 pounds. A sample of 36 packages reveals the mean<BR>\n" );
document.write( "weight to be 3.01 pounds, with a standard deviation of 0.03 pounds.<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "a. What is the estimated population mean?<BR>\n" );
document.write( "Point estimate = 3.01 lbs.<BR>\n" );
document.write( "--------------------------------------<BR>\n" );
document.write( "b. Determine a 95 percent confidence interval for the population mean. <BR>\n" );
document.write( "sample mean = 3.01<BR>\n" );
document.write( "E = invT(0.975,35)*0.03/sqrt(36) = 0.0102<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "95% CI: 3.01-0.0102 < u < 3.01+0102<BR>\n" );
document.write( "=======================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );