1. 

   Shikha Agarwal Member

   In hypothesis test, if we have to find value of standard deviation, which pivotal quantity should be used? would chi-square be an appropriate quantity?

    

   Shikha Agarwal, Aug 13, 2016

   #1
2. 

   John Lee ActEd Tutor Staff Member

   Yes you use the:
   
   \(\frac{(n-1)S^2}{\sigma ^2} \sim \chi^2_{n-1}\)

    

   John Lee, Aug 16, 2016

   #2

   Shikha Agarwal likes this.

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