document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=304168>Question 304168</A>: <I><SPAN STYLE=\"word-break: break-all;\">  	 Researchers want to estimate the mean weight of all chipmunks living in Albuquerque, NM. Using the population standard deviation of 1.4 ounces as in Question #5, find the sample size required if we want our  margin of error to be less than 0.25 ounces with 95% confidence.\r<BR>\n" );
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document.write( "  	a.  	 11 chipmunks<BR>\n" );
document.write( "	b. 	120 chipmunks<BR>\n" );
document.write( "	c. 	121 chipmunks<BR>\n" );
document.write( "	d. 	120.5 chipmunks<BR>\n" );
document.write( "	e. 	44 chipmunks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #217924 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=217924\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Researchers want to estimate the mean weight of all chipmunks living in Albuquerque, NM. Using the population standard deviation of 1.4 ounces as in Question #5, find the sample size required if we want our margin of error to be less than 0.25 ounces with 95% confidence.<BR>\n" );
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document.write( "n = [z*s/E]^2<BR>\n" );
document.write( "n = [1.96*1.4/0.25]^2 = 120<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "a. 11 chipmunks<BR>\n" );
document.write( "b. 120 chipmunks<BR>\n" );
document.write( "c. 121 chipmunks<BR>\n" );
document.write( "d. 120.5 chipmunks<BR>\n" );
document.write( "e. 44 chipmunks<BR>\n" );
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