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Part CCSIR NET December 2023kolmogorov-scaling

Kolmogorov scaling

Let be a random sample from an unknown absolutely continuous CDF F, and specified absolutely continuous CDF. For vs , consider = sup_x || and = n·sup_x ||, where is the empirical CDF. Which of the following statements are true?

  1. A. → 0 in probability as under
  2. B. → 0 in probability as under
  3. C.lim P_F( > 1) = 1 for all F
  4. D. converges in distribution to a degenerate random variable under

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The trap it tests

Moments and tails

A moment assumed to exist, or tail behaviour assumed to be tame.

Drill statements like this

Related counterexample: Any interval of the form [X̄ − (S/√n)t, ∞) with a 90% quantile t is a 90% confidence interval

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