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September 2007 11 (iv)

Discussion in 'CT4' started by Janboyd, Mar 18, 2018.

  1. Janboyd

    Janboyd Member

    Please could someone explain how we reach 8 degrees of freedom?
     
    Janboyd, Mar 18, 2018
    #1
  2. Varsha Agarwal

    Varsha Agarwal Very Active Member

    In core reading Page 39 chap 3 , we have no of degree of freedom formula as (r-2q+s).
    Where r denotes no of triplets,q denotes no of pairs and s denotes no of states.
    Now in this question r = 12 as observed,s= 3 but q= 6 and not 3.So df will be calculated as (12-6*2+3)=3
    the critical value of chi square 3 at 5% is 7.815.
    PS : I don't think it should be 8 as given in the solution.
     
    Varsha Agarwal, Jun 15, 2018
    #2

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