document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138977>Question 138977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were<BR>\n" );
document.write( "3.087<BR>\n" );
document.write( "3.131<BR>\n" );
document.write( "3.241<BR>\n" );
document.write( "3.241<BR>\n" );
document.write( "3.270<BR>\n" );
document.write( "3.353<BR>\n" );
document.write( "3.400<BR>\n" );
document.write( "3.400<BR>\n" );
document.write( "3.437<BR>\n" );
document.write( "3.477<BR>\n" );
document.write( "(a) Construct a 90 percent confidence interval for the true mean weight.<BR>\n" );
document.write( "(b) What sample size would be necessary to estimate the true weight with an error of + 0.03 grams with 90 percent confidence?<BR>\n" );
document.write( "(c) Discuss the factors which might cause variation in the weight of Tootsie Rolls during manufacture </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101400 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=101400\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This problem has been posted many times.<BR>\n" );
document.write( "Go to www.algebra.com<BR>\n" );
document.write( "Use the search bar to find 138528<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );