Construct a 90 confidence interval for 2 1 2 2 in Exercise 9 43 were we justified in assuming that 2 1 2 2 when we constructed our confidence interval for 1 2

Question: Construct a 90% confidence interval for 2 1 2 2 in Exercise 9.43 were we justified in assuming that 2 1

Construct a 90% confidence interval for σ²₁\ σ²₂in Exercise 9.43 were we justified in assuming that σ²₁ ≠ σ²₂ when we constructed our confidence interval for μ₁ – μ₂?

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