Example 12.5 Two samples of sizes 40 and 50, respectively, are taken from a population with unknown mean μ and unknown variance o². Sample I: n₁ = 40, Σf x₁ = 807, Σf x² = 16329 Sample II: "₂ = 50, Efx, = 977, Σfx = 19177 Using the data from the two samples, obtain the best estimates of μ and o².

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