document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=407358>Question 407358</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to answer for class right now can someone help me please!\r<BR>\n" );
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document.write( "Consider a population with u=71.7 and o=3.95 .<BR>\n" );
document.write( "(A) Calculate the z-score for x = 70.3 from a sample of size 41.<BR>\n" );
document.write( "(B) Could this z-score be used in calculating probabilities?  Why or why not?<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 #385190 by </B><A HREF=/tutors/aboutme.mpl?userid=sunsetatdawn><B>sunsetatdawn(4)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sunsetatdawn><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=sunsetatdawn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=385190\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This answer left one thing out of the formula for answer A. Though, it is probably too late to be helpful to you now, it may be to someone else. The formula for A would be (70.3 - 71.7)/(3.95/41) and solve from there. When using a sample, the formula is the same as was given to find a z score for a whole population, except you have to divide the standard deviation in the denominator by n(the number in the sample).  </SPAN>\n" );
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