document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=479785>Question 479785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I tried working this problem out, but got stuck, please help\r<BR>\n" );
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document.write( "A vending machine dispenses coffee in a 20 oz cup.  The amount of coffee dispensed into the cup is normally distrubuted with a standard deviation of 0.06 oz. You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed,  Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #328815 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=328815\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A vending machine dispenses coffee in a 20 oz cup. <BR>\n" );
document.write( "The amount of coffee dispensed into the cup i<BR>\n" );
document.write( "s normally distributed with a standard deviation of 0.06 oz. <BR>\n" );
document.write( "You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed,<BR>\n" );
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document.write( "Find the z-value with a left tail of 54%<BR>\n" );
document.write( "invNor(0.54) = 0.1004<BR>\n" );
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document.write( "Solve the following for \"u\":<BR>\n" );
document.write( "z(20) = (20-u)/0.06 = 0.1004 <BR>\n" );
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document.write( "20-u = 0.06*0.1004 = 0.006<BR>\n" );
document.write( "u = 19.994<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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