What condition imposed on constants for unbiased estimator

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If θ1 and θ2 are unbiased estimators of θ, show that θ3=k1θ1+ k2θ2 is biased estimator of θ. What condition must be imposed on constants k1 and k2, so that θ3 is an unbiased estimator of θ?

Reference no: EM13115643

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