document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=421542>Question 421542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you please assist with this problem.  I am unsure if I have the correct answer?\r<BR>\n" );
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document.write( "The owner of an appliance store uses a normal distribution with mean 10 and variance 9 to model the weekly net sales (in units of $1000).  The owner needs $3500 a week to pay his staff.  Determine the probability that the weekly net sales will not be enough to pay the whole of this amount.\r<BR>\n" );
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document.write( "Thank you so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #294395 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=294395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The owner of an appliance store uses a normal distribution with mean 10 and variance 9 to model the weekly net sales (in units of $1000). The owner needs $3500 a week to pay his staff. Determine the probability that the weekly net sales will not be enough to pay the whole of this amount. <BR>\n" );
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document.write( "z(3500) = (3.5-10)/9 = -0.7778<BR>\n" );
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document.write( "P(x < 3.5 thousand) = P(z < -0.7778) = 0.2184<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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