document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1129594>Question 1129594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Twelve different video games showing substance use were observed and the duration times of game play&#8203; (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 95&#8203;% confidence interval estimate of mu&#8203;, the mean duration of game play.\r<BR>\n" );
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document.write( "Data:- 4039 4036 5009 4817 4327 4313 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #746160 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=746160\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Twelve different video games showing substance use were observed and the duration times of game play&#8203; (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 95&#8203;% confidence interval estimate of mu&#8203;, the mean duration of game play. <BR>\n" );
document.write( "Data:- 40 ,39, 40, 36, 50, 09, 48,17, 43, 27, 43, 13<BR>\n" );
document.write( "Find the sample mean:: x-bar = 33.75<BR>\n" );
document.write( "Find the standard deviation:: s = 13.88 <BR>\n" );
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document.write( "Margin of Error = z*s/sqrt(n) = 1.96*13.88/sqrt(12) = 7.85<BR>\n" );
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document.write( "95% CI: 33.75-7.85 < mu < 33.75+7.85<BR>\n" );
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document.write( "95% CI: 25.9 < mu < 41.6<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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