medium · FRM Part 1

A portfolio manager compares the variance of a new strategy (s^2 = 0.09) to a benchmark variance (σ^2 = 0.04) using a sample of 31 days.

What is the degrees of freedom for the Chi-square test of this single variance?

  1. 60
  2. 1
  3. 31
  4. 30

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