An insurer has data on losses for four policyholders for 7 years. The loss from the ™ policyholder for year j is Xy. You are given: 4 7 E{x,- X.)' = 3360 Ż(X,- x)° = 3.30 Using nonparametric empirical Bayes estimation, calculate the Bühlmann credibility factor for an individual policyholder. (A) Less than 0.74 (B) At least 0.74, but less than 0.77 (C) At least 0.77, but less than 0.80 (D) At least 0.80, but less than 0.83 (E) At least 0.83

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A: NOTE: Refresh your page if you can't see any equations. . take derivative

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