Question: Calculate s2, the pooled estimator for s2, in these cases: a. n1 = 10, n2 = 4, s21 = 3.4, s22 = 4.9 a. n1

Calculate s2, the pooled estimator for s2, in these cases:
a. n1 = 10, n2 = 4, s21 = 3.4, s22 = 4.9
a. n1 = 12, n2 = 21, s21 = 18, s22 = 23

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