Weibull function - find alpha and beta

  1. I have a weibull function and can´t find alpha and beta.
    I already used MLE formula and alpha(0) formula and found alpha and them beta but can´t get the right answer.
    What should I do? What am I doing wrong?

    here are my numbers

    3,422567
    1,965179
    2,409046
    2,945606
    4,586814
    4,012634
    1,844763
    6,487993
    7,028171
    3,218376
    0,920871
    2,945763
    2,561407
    2,046054
    1,694759
     
  2. jcsd
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