document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=931785>Question 931785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A normal population has a mean of 66 and a standard deviation of 4. You select a sample of 48.<BR>\n" );
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document.write( "Compute the probability the sample mean is: (Round z values to 2 decimal places and final answers to 4 decimal places.)<BR>\n" );
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document.write( "(a)	Less than 65.\r<BR>\n" );
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document.write( "(b)	Between 65 and 67.\r<BR>\n" );
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document.write( "(c)	Between 67 and 68.\r<BR>\n" );
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document.write( "(d)	Greater than 68.<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 #565816 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=565816\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean of 66 and a standard deviation of 4.<BR>\n" );
document.write( "n = 48,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z+=blue+%28x+-+68%29%2Fblue%284%2Fsqrt%2848%29%29+=blue+%28x+-+68%29%2Fblue%28.58%29+ ALIGN=MIDDLE  ALT=\"z+=blue+%28x+-+68%29%2Fblue%284%2Fsqrt%2848%29%29+=blue+%28x+-+68%29%2Fblue%28.58%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "P(x < 65) = P(z <-1/.58) = normalcdf(-100, -1.72)<BR>\n" );
document.write( "P(65 < x <67) = P(-1.72 < z < 1.72) = normalcdf(-1.72, 1.72)<BR>\n" );
document.write( "P( 67< x < 68) = P(1.72 < z < 3.45)=normalcdf(1.72, 3.45)<BR>\n" );
document.write( "P(x > 68) = P(z > 3.45) = normalcdf(3.45, 100) </SPAN>\n" );
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