Mathematics, 21.11.2019 06:31 veheca
Suppose a certain type of fertilizer has an expected yield per acre of ΞΌ1 with variance Ο2, whereas the expected yield for a second type of fertilizer is ΞΌ2 with the same variance Ο2. let s12 and s22 denote the sample variances of yields based on sample sizes n1 and n2, respectively, of the two fertilizers. show that the pooled (combined) estimator below is an unbiased estimator of Ο2. sigma hat2 = (n1 β 1)s12 + (n2 β 1)s22 n1 + n2 β 2 e (n1 β 1)s12 + (n2 β 1)s22 n1 + n2 β 2 = n1 β 1 n1 + n2 β 2 e + n2 β 1 n1 + n2 β 2 e = n1 β 1 n1 + n2 β 2 + n2 β 1 n1 + n2 β 2 = Ο2
Answers: 3
Mathematics, 21.06.2019 19:00
What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)
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Mathematics, 21.06.2019 20:30
Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did
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Suppose a certain type of fertilizer has an expected yield per acre of ΞΌ1 with variance Ο2, whereas...
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