document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=382362>Question 382362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me to understand the margin of error and p-value better.<BR>\n" );
document.write( "Does reducing standard deviation reduce margin of error?<BR>\n" );
document.write( "Does lowering confidence level reduce the margin of error?<BR>\n" );
document.write( "Is data only significant if the p-value is less than a?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #270998 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=270998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Please help me to understand the margin of error and p-value better.<BR>\n" );
document.write( "Does reducing standard deviation reduce margin of error?<BR>\n" );
document.write( "ME = z*s/sqrt(n)<BR>\n" );
document.write( "Reducing \"s\" on the right side reduces ME on the left side.<BR>\n" );
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document.write( "Does lowering confidence level reduce the margin of error?<BR>\n" );
document.write( "Again: Reducing the confidence level will reduce \"z\" on the right <BR>\n" );
document.write( "which has the effect of reducing ME on the left side<BR>\n" );
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document.write( "Is data only significant if the p-value is less than alpha?<BR>\n" );
document.write( "It's not the data that is or is not significant.<BR>\n" );
document.write( "The terminology provides an agreeable way of<BR>\n" );
document.write( "stating the significance of the test results.<BR>\n" );
document.write( "When the p-value is close to alpha more testing may<BR>\n" );
document.write( "be in order.  When the p-value differs significantly<BR>\n" );
document.write( "from alpha we have some reason to accept or deny whatever<BR>\n" );
document.write( "Ho says.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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