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Math Help - paired t test

  1. #1
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    Joined
    Mar 2008
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    8

    paired t test

    I'm working on a paired t test step my step. Step 3 requires me to find d and d^2

    I got (strange looking E with d besides it) and but I havent found (strange E thing with d^2) I've tried to add it all and divide it by the total number (17). I tried to subtract after-before. I tried to times my answer of 123.5 by sum of all d (the stange looking E with d besides it). I have run out of ways to find it. Just to correct , the answer is 1716.9. I dont know how to get this. Helpppp

    Here is the data before:
    83.3
    86.0
    82.5
    86.7
    79.6
    87.3
    76.9
    94.2
    73.4
    80.5
    81.6
    83.8
    82.1
    77.6
    83.5
    89.9
    86.0

    and after:
    94.3
    91.5
    91.9
    100.3
    76.7
    98.0
    76.8
    101.6
    94.9
    75.2
    77.8
    95.2
    95.5
    90.7
    92.5
    93.8
    91.7
    Last edited by l0v3n; May 2nd 2008 at 07:37 PM. Reason: The e symbol did not show up
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