document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=865385>Question 865385</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The local grocery store sells a gallon of milk for $3.04. If the average price for a gallon of milk is $2.94 with a standard deviation of $0.19, find the z-score for the price of the gallon of milk.\r<BR>\n" );
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document.write( "How would I find the z score? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521667 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=521667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean: mu = 2.94 (the symbol commonly used is mu = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mu ALIGN=MIDDLE  ALT=\"mu\"   DISABLED_style= \"max-width:90%; height:auto;\" >)<BR>\n" );
document.write( "standard deviation: sigma = 0.19 (the symbol commonly used is sigma = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma ALIGN=MIDDLE  ALT=\"sigma\"   DISABLED_style= \"max-width:90%; height:auto;\" >)<BR>\n" );
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document.write( "Raw Score: x = 3.04\r<BR>\n" );
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document.write( "Z-score\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=+%28x-mu%29%2Fsigma ALIGN=MIDDLE  ALT=\"z+=+%28x-mu%29%2Fsigma\"   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+=+%283.04-2.94%29%2F0.19 ALIGN=MIDDLE  ALT=\"z+=+%283.04-2.94%29%2F0.19\"   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+=+0.10%2F0.19 ALIGN=MIDDLE  ALT=\"z+=+0.10%2F0.19\"   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+=+0.52631578947369 ALIGN=MIDDLE  ALT=\"z+=+0.52631578947369\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the z-score is approximately z = 0.52631578947369\r<BR>\n" );
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document.write( "Round that accordingly if you need to (ex: if they want 2 decimal places, then don't forget to round to z = 0.53)<BR>\n" );
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