Question: With reference to Exercise 13.4, find the required size of the samples when 1 = 9, 2 = 13, = 80, t = 86,

With reference to Exercise 13.4, find the required size of the samples when σ1 = 9, σ2 = 13, ∂ = 80, ∂t = 86, α = 0.01, and β = 0.01.

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