CS1 CH8 Q.8.4 (ii) b

Discussion in 'CS1' started by Abbas212, May 5, 2019.

  1. Abbas212

    Abbas212 Member

    Why did they didn't found the difference in Mean by formula of "two independent normal distribution with unknown variance" but why by defining new variable D?
     
  2. Sunil B

    Sunil B Made first post

    Hey,
    The given problem is an example of paired data as the sample remains same, only the observers and observations change. Hence the difference D is used.
     
    Abbas212 likes this.

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