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Expected values and Test statistics

  1. Apr 28, 2013 #1
    NEVERMIND: I realised I had to break it down into a mini table and it was instantly solved :S

    [STRIKE]1. The problem statement, all variables and given/known data
    Table is attached.
    They want expected value of the sometimes column. Now I have done expected values of actual values(Row and Column giving)...


    2. Relevant equations
    Expected value = (Row total* Column total)/Grand total
    Test statistic = (observed * expected)^2 / expected


    3. The attempt at a solution
    I am pretty sure I just do (26*120)/120 here... So 26. But that seems wrong, because the proceeding question is: Calculate Test statistic of the sometimes column, which I got 144.5 using the expected value. I am told this 144.5 is wrong by a few of my peers :\.[/STRIKE]
     

    Attached Files:

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    Last edited: Apr 28, 2013
  2. jcsd
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