document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=137663>Question 137663</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 110 pounds. A random sample of 150 newly manufactured cables has a mean breaking strength of1750 pounds. Based on this sample, find a 90%confidence interval for the true mean breaking strength of all cables produced by this manufacturer. Then complete the table below. <BR>\n" );
document.write( "Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. <BR>\n" );
document.write( "what is the lower limit of the confidence level<BR>\n" );
document.write( "What is the higher limit of the confidence level<BR>\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 #100687 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=100687\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 110 pounds. A random sample of 150 newly manufactured cables has a mean breaking strength of1750 pounds. Based on this sample, <BR>\n" );
document.write( "find a 90% confidence interval for the true mean breaking strength of all cables produced by this manufacturer.<BR>\n" );
document.write( "x-bar: 1750 lbs<BR>\n" );
document.write( "E: 1.645 = 14.7745...<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "90% CI: 1750-E < u < 1750+E<BR>\n" );
document.write( "-------------------------------------\r<BR>\n" );
document.write( "\n" );
document.write( "Then complete the table below. <BR>\n" );
document.write( "Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. <BR>\n" );
document.write( "what is the lower limit of the confidence level:1735.225<BR>\n" );
document.write( "What is the higher limit of the confidence level: 1764.775<BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );