Q 5.7 Question bank

Discussion in 'CT3' started by vidhya36, Oct 17, 2014.

  1. vidhya36

    vidhya36 Very Active Member

    How the p-value is computed as 0.013 per cent for t 98 distribution?
     
  2. Hemant Rupani

    Hemant Rupani Senior Member

    I calculated 0.006% from a software.
    In notes they mentioned similarity of standard normal distribution (as df is large) but even it gives 0.003%(not accurate as t-distribution )

    So I thinkk 0.013% is erratum.
     
  3. vidhya36

    vidhya36 Very Active Member

    I can see at 0.001 percentage 4.2649 for a standard normal distribution. I think they interpolated it for 4.003.

    After posting here, it stuck me.
     
  4. vidhya36

    vidhya36 Very Active Member

    But, yes the interpolation gives the answer 0.00379 percentage.
     
  5. Hemant Rupani

    Hemant Rupani Senior Member

    For any good interpretation null hypothesis is rejected.
    So no worries!
    But point is either ActEd wrote 2*(p-value(exact) ) or it is 0.003(as per table) (in notes written 0.013)
     

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