document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=943888>Question 943888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific day :) Here is the three part question?\r<BR>\n" );
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document.write( "One sample has a mean of M = 6 and a second sample has a mean of M = 12. The two samples are combined into a single set of scores.\r<BR>\n" );
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document.write( "A. What is the mean for the combined set if both of the original samples have n = 5 scores?\r<BR>\n" );
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document.write( "B. What is the mean for the combined set if the first sample has n = 4 scores and the second sample has n = 8?\r<BR>\n" );
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document.write( "C. What is the mean for the combined set if the first sample has n = 8 scores and the second sample has n = 4?\r<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 #575525 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=575525\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Part A: First sample with M=6 and 5 scores Second sample M=12 with 5 scores<BR>\n" );
document.write( "With average (mean)=6 5 scores would sum (5 x 6)=30<BR>\n" );
document.write( "With average (mean)=12 5 scores would sum (5 x 12)=60<BR>\n" );
document.write( "total points=30+60=90 total scores (5+5)=10 scores<BR>\n" );
document.write( "so combined mean is 90total points/10 scores=combined M=9 ANSWER A Mean=9<BR>\n" );
document.write( "Part B:<BR>\n" );
document.write( "With average (mean)=6 4 scores would sum (4 x 6)=24<BR>\n" );
document.write( "With average (mean)=12 8 scores would sum (8 x 12)=96<BR>\n" );
document.write( "Total points=24+96=120; total scores (4+8)=12 scores<BR>\n" );
document.write( "so combined mean is 120 total points/12 scores=combined M=10 ANSWER B Mean=10<BR>\n" );
document.write( "Part C:<BR>\n" );
document.write( "With average (mean)=6 8 scores would sum (8 x 6)=48<BR>\n" );
document.write( "With average (mean)=12 4 scores would sum (4 x 12)=48<BR>\n" );
document.write( "Total points=48+48=96; total scores (8+4)=12 scores<BR>\n" );
document.write( "so combined mean is 96 total points/12 scores=combined M=8 ANSWER C Mean=8 </SPAN>\n" );
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