document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1087807>Question 1087807</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The mean life of an appliance manufactured by your company is 10 years with a standard deviation of 3.5 years.\r<BR>\n" );
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document.write( "What is the Z value to find the area for a machine that lasted 13 years? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #702102 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=702102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=\"black\" face=\"times\" size=\"3\"><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+%28x+-+mu%29%2F%28sigma%29 ALIGN=MIDDLE  ALT=\"z+=+%28x+-+mu%29%2F%28sigma%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the z-score formula.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+%28x+-+10%29%2F%28sigma%29 ALIGN=MIDDLE  ALT=\"z+=+%28x+-+10%29%2F%28sigma%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in the mean <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mu+=+10 ALIGN=MIDDLE  ALT=\"mu+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" > (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mu ALIGN=MIDDLE  ALT=\"mu\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the greek letter mu)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+%28x+-+10%29%2F%283.5%29 ALIGN=MIDDLE  ALT=\"z+=+%28x+-+10%29%2F%283.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in the standard deviation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma+=+3.5 ALIGN=MIDDLE  ALT=\"sigma+=+3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma ALIGN=MIDDLE  ALT=\"sigma\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the greek letter sigma)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+%2813+-+10%29%2F%283.5%29 ALIGN=MIDDLE  ALT=\"z+=+%2813+-+10%29%2F%283.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in the raw score <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+13 ALIGN=MIDDLE  ALT=\"x+=+13\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+3%2F3.5 ALIGN=MIDDLE  ALT=\"z+=+3%2F3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract in the numerator\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+0.85714285714286 ALIGN=MIDDLE  ALT=\"z+=+0.85714285714286\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+0.86 ALIGN=MIDDLE  ALT=\"z+=+0.86\"   DISABLED_style= \"max-width:90%; height:auto;\" > Round to the nearest hundredth (refine the accuracy however you need to)\r<BR>\n" );
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document.write( "The z value is roughly <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+0.86 ALIGN=MIDDLE  ALT=\"z+=+0.86\"   DISABLED_style= \"max-width:90%; height:auto;\" ></font> </SPAN>\n" );
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