Mathematics, 27.11.2019 04:31 bentleyevans15
Suppose the true average growth μ of one type of plant during a 1-year period is identical to that of a second type, but the variance of growth for the first type is σ2, whereas for the second type the variance is 4σ2. let x1, , xm be m independent growth observations on the first type [so e(xi) = μ, v(xi) = σ2], and let y1, , yn be n independent growth observations on the second type [e(yi) = μ, v(yi) = 4σ2]. (a) show that the estimator mu hat = δx + (1 − δ)y is unbiased for μ (for 0 < δ < 1, the estimator is a weighted average of the two individual sample means). e(mu hat) = e(δx + (1 − δ)y) = e(x) + e(y) = δμ + μ = (b) for fixed m and n, compute v(mu hat).
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Mathematics, 21.06.2019 17:00
Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3
Answers: 1
Mathematics, 21.06.2019 22:40
Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?
Answers: 2
Suppose the true average growth μ of one type of plant during a 1-year period is identical to that o...
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