document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186324>Question 1186324</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Supposed the data are SAT scores and follow a normal distribution with a mean of 500 and a standard deviation 100. \r<BR>\n" );
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document.write( "a.What percent of the population obtains scores of 410 or less?<BR>\n" );
document.write( "b.What is the minimum score needed to rank in the top 5% of the populations?<BR>\n" );
document.write( "c.A  psychologist  wishes  to  test  a  new  learning  strategy  on  the  bottom  15%  of those  who  took  the  Math  SAT.  What  cut-off  score  should  she  use  to  select participants for her study?<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 #817213 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=817213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use the following calculator.\r<BR>\n" );
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document.write( "<a  rel=nofollow HREF= \"https://davidmlane.com/hyperstat/z_table.html\" target = \"_blank\">https://davidmlane.com/hyperstat/z_table.html</a>\r<BR>\n" );
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document.write( "answers to your questions.\r<BR>\n" );
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document.write( "a.What percent of the population obtains scores of 410 or less?\r<BR>\n" );
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document.write( ".1841 = 18.41%\r<BR>\n" );
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document.write( "b.What is the minimum score needed to rank in the top 5% of the populations?\r<BR>\n" );
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document.write( "664.485\r<BR>\n" );
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document.write( "c.A psychologist wishes to test a new learning strategy on the bottom 15% of those who took the Math SAT. What cut-off score should she use to select participants for her study?\r<BR>\n" );
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document.write( "396.357\r<BR>\n" );
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