document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308673>Question 308673</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I am having a very difficult time figuring this statistics problem. I appreciate any help.\r<BR>\n" );
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document.write( "A study of 47 golfers show that their average score on a particular course was 97. The standard deviation of the sample is 7. Find the 99% confidence interval of the mean score for all golfers. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220723 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220723\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You know the mean, the standard deviation, the confidence interval, and the number of golfers. <BR>\n" );
document.write( "Plug the data into the formula. <BR>\n" );
document.write( "(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Xave+%2B-+Z%2Asigma%2Fsqrt%28N%29 ALIGN=MIDDLE  ALT=\"Xave+%2B-+Z%2Asigma%2Fsqrt%28N%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >)<BR>\n" );
document.write( "At 99%, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Z=2.58 ALIGN=MIDDLE  ALT=\"Z=2.58\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Xave=97 ALIGN=MIDDLE  ALT=\"Xave=97\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=47 ALIGN=MIDDLE  ALT=\"N=47\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sigma=7 ALIGN=MIDDLE  ALT=\"sigma=7\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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