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October 12, 2009

Multiple Choice Quiz Unit 9
I do not understand how to do problems like this....Can you please help me?

Who cuts more classes -- males or females? To answer this question, Professor Smith recorded absences for a sample of 10 males and 12 females. For males, the average number of absences is 3.8 (s = 1.1). For females, the average number of absences is 3.3 (s=1.3). For these data the calculated value of t equals:

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Posted by      Gabrielle D. at 12:45 PM CDT

Comments:

  Rebecca G.  says:
This is a t test for Independent Samples. Use the CALCULATOR labeled T Test - Sum Stats and enter the mean, standard deviation and sample size for each group. Click CALCULATE. You should see the calculated value of t.
Posted on Mon, 12 Oct 2009 3:06 PM CDT by Rebecca G.
  Gabrielle D.  says:
okay I was trying to do it as a dependent sample....thank you!
Posted on Tue, 13 Oct 2009 12:11 PM CDT by Gabrielle D.
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