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確認テスト 基礎編2.7 (標準) カイ二乗分布,中心極限定理,デルタ法

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方針

  • (a) V_XとV_Yは独立なのでカイ二乗分布の期待値と2.3(e)を使ってE[F]などを求める.
  • (b) 独立性を利用して期待値を求める.不偏分散の和はカイ二乗分布に従うが,自由度に気を付ける.
  • (c) 分母,分子に分けてCLTとスラツキーの定理によって漸近分布を求める.不偏分散は真の分散に確率収束する.5.10参照.
  • (d) デルタ法.

答案

確認テスト 基礎編2-12.jpg
確認テスト 基礎編2-13.jpg
確認テスト 基礎編2-14.jpg

参考文献

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