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 #287184 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=287184\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A)\r<BR>\n" );
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document.write( "Recall that the z score is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%28x-mu%29%2Fsigma ALIGN=MIDDLE  ALT=\"z=%28x-mu%29%2Fsigma\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so the z score of x=70.3 is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=%2870.3-71.7%29%2F%283.95%29=-0.354 ALIGN=MIDDLE  ALT=\"z=%2870.3-71.7%29%2F%283.95%29=-0.354\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "B)\r<BR>\n" );
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document.write( "Yes it can be used to calculate probabilities. Your book will most likely have standard normal tables in the back, which will help you calculate probabilities.\r<BR>\n" );
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document.write( "For example, a common value in the table is P(Z < 0) = 0.5\r<BR>\n" );
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document.write( "If you need more help, email me at <a  rel=nofollow HREF=\"mailto:jim_thompson5910@hotmail.com\">jim_thompson5910@hotmail.com</a>\r<BR>\n" );
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document.write( "Jim </SPAN>\n" );
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