document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=322989>Question 322989</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help...i tried to work the problem with the formula given <BR>\n" );
document.write( "z=value-mean/standard deviation<BR>\n" );
document.write( "According to a survey conducted by television advertisers, the average adult American watches an average of 6.98 hours of television per day.  The data is normally distributed with a standard devieation of 3.80 hours.  Find the probability that a randomly selected person watches more than 8.00 hours of television a day.<BR>\n" );
document.write( "8.00-6.98/3.80=6.163...is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #231191 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=231191\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> work the problem with the formula given <BR>\n" );
document.write( "z=value-mean/standard deviation<BR>\n" );
document.write( "According to a survey conducted by television advertisers, the average adult American watches an average of 6.98 hours of television per day. The data is normally distributed with a standard devieation of 3.80 hours. Find the probability that a randomly selected person watches more than 8.00 hours of television a day.<BR>\n" );
document.write( "8.00-6.98/3.80=6.163...is this correct?<BR>\n" );
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document.write( "Note: Your Formula is wrong; you always need parentheses in the numerator.<BR>\n" );
document.write( "It should be z-value = (value-mean)/standard deviation<BR>\n" );
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document.write( "z(8) = (8-6.93)/3.8 = 1.02/3.8 = 0.2684<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );