document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=407645>Question 407645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A baking company claims that the average shelf life for its bread is 7 days. Suppose that the standard deviation for the shelf life for this company's bread is 2 days and that the data representing the shelf lives are normally disributed. Approximately what percentage of the company's bread will have a shelf life between 11 and 13 days? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #287312 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=287312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A baking company claims that the average shelf life for its bread is 7 days. Suppose that the standard deviation for the shelf life for this company's bread is 2 days and that the data representing the shelf lives are normally disributed. Approximately what percentage of the company's bread will have a shelf life between 11 and 13 days?<BR>\n" );
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document.write( "z(11) = (11-7)/2 = 2<BR>\n" );
document.write( "z(13) = (13-7)2 = 3<BR>\n" );
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document.write( "P(11 < x < 13) = P(2 < z < 3) = 0.0214<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" );