Doubt

[Halflife]

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[happy]

E(B hat ) = B  (unbaised estimator)
s.e.(B hat) = 0  (for large sample => B hat is constant)

implies
B hat = B for large sample

[Halflife]

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[happy]

i think they put comma by mistake

if we interpret the option without comma, it will be

1. Estimator is unbiased for large sample (not for small)
2. Variance of estimator is 0 for large sample

[Halflife]

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