Unbiasedness and Efficiency of OLS Estimators
question 1 of 34
course: Bachelor of Science in Health Services Management and Planning
Q: Assume X is a random variable with E(x) = μ and Var(x) = σ². We have four independent observations: x1, x2, x3, x4. Let μ̂₁ = (1/4)(x1 + x2 + x3 + x4) be an estimator for the population mean μ. What are the expected value and variance of μ̂₁?
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Policy capacity refers to the skills, resources, and institutional capabilities needed to develop, implement, and evaluate policies effectively.
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