document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=664710>Question 664710</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem, based on the examples in the book, I can't figure it out.<BR>\n" );
document.write( "Scores on a particular test have a mean of 64.6.  The distribution of sample means for samples of size 100 is normal with a mean of 64.6 and a standard deviation of 1.9.  Suppose you take a sample of size 100 of test scores and find that the mean is 63.  What is the z-score corresponding to this sample mean? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #413430 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=413430\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Scores on a particular test have a mean of 64.6. The distribution of sample means for samples of size 100 is normal with a mean of 64.6 and a standard deviation of 1.9. Suppose you take a sample of size 100 of test scores and find that the mean is 63. What is the z-score corresponding to this sample mean?<BR>\n" );
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document.write( "z(63) = (63-64.6)/1.9 = -0.8421<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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