document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=433384>Question 433384</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The monthly starting salaries of students who receive engineering degrees have a standard deviation of $600.  What sample size should be selected so that there is 0.95 probability of estimating the mean monthly income within $150 or less?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #300423 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=300423\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The monthly starting salaries of students who receive engineering degrees have a standard deviation of $600. What sample size should be selected so that there is 0.95 probability of estimating the mean monthly income within $150 or less? <BR>\n" );
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document.write( "n = [zs/E]^2<BR>\n" );
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document.write( "n = [1.96*600/150]^2 <BR>\n" );
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document.write( "n = [1.96*4]^2<BR>\n" );
document.write( "n = 62 when rounded up<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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