document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=758549>Question 758549</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What sample size is needed to estimate the mean white blood cell count (in cell micro-liter)?\r<BR>\n" );
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document.write( "For the population of adults in the United States? Assume that you want 99% confidence that the sample mean is within 0.2 of the population mean. The population standard deviation is 2.5. Show formula please,thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #461557 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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/cgi-bin/show-face.mpl?user=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=461557\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q:<BR>\n" );
document.write( "What sample size is needed to estimate the mean white blood cell count (in cell micro-liter)?<BR>\n" );
document.write( "For the population of adults in the United States? Assume that you want 99% confidence that the sample mean is within 0.2 of the population mean. The population standard deviation is 2.5. Show formula please,thank you.<BR>\n" );
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document.write( "A:<BR>\n" );
document.write( "Enter =roundup((-normsinv((1-.99)/2)*2.5/0.2)^2,0) on EXCEL,the result is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%281037%29 ALIGN=MIDDLE  ALT=\"highlight%281037%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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