Let Y 1 , Y 2 , , Y 9 be a random sample of size 9 from a normal distribution where 2 and 2 Let Y 1 , Y 2 , , Y 9 be an independent random sample from a normal distribution having 1 and 1 Find P(Y Y )

Question: Let Y 1 , Y 2 , . . . , Y 9 be a random sample of size 9 from a normal distribution where

Let Y₁, Y₂, . . . , Y₉ be a random sample of size 9 from a normal distribution where μ = 2 and σ = 2. Let Y^∗₁, Y^∗₂, . . . , Y^∗₉ be an independent random sample from a normal distribution having μ = 1 and σ = 1. Find P(Y̅ ≥ Y̅^∗).

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