document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=663785>Question 663785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I tried reading the text more than once and even tried the hints that were given but....thanks in advance<BR>\n" );
document.write( "By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.15 seconds. Please answer the following and show all work: A) how many measurements should be made in order to be 99%  certain that the maximum error of estimation will not exceed 1.0 seconds? B) what sample size is required for a maximum error of 2.0 seconds?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #412942 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=412942\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.15 seconds. Please answer the following and show all work: <BR>\n" );
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document.write( "A) how many measurements should be made in order to be 99% certain that the maximum error of estimation will not exceed 1.0 seconds? ------<BR>\n" );
document.write( "n = [z*s/E]^2<BR>\n" );
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document.write( "n = [2.5758*3.15/1.0]^2 = 66 when rounded up<BR>\n" );
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document.write( "B) what sample size is required for a maximum error of 2.0 seconds?<BR>\n" );
document.write( "n = [2/5758*3.15/2]^2 = 17 when rounded up<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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