Question

1. Consider a ratio estimator h(01,02) 1/02, where the estimated variance- Го, is covariance for ô Cov(o,O2) Cov (0) ΙGov(0, 6.) Using the delta method, show that 1/0 V,6) [1/ -0,/0 vCov( -01/05

Answer 1

Given that

consider a ratio estimator

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