Two samples of sizes 40 and 50, respectively, an u and unknown variance ²

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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
Σ+ x = 16329
Sample II: n₂ = 50,
Σf x₂ = 977,
Σf x = 19177
Using the data from the two samples, obtain the best estimates of u and o².
= 807,
Transcribed Image Text: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 Σ+ x = 16329 Sample II: n₂ = 50, Σf x₂ = 977, Σf x = 19177 Using the data from the two samples, obtain the best estimates of u and o². = 807,
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