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Exercises8.1 Let X ~ and X = 0 be a random sample of X. Assume 0 follows a beta distribution with hyperparameters 0 and 0.(a) Calculate the posterior mean of 0(b) What is the conditional pf of 0 given the sample data x?8.2 Let X ~ and 0~. Given the functions 0 and 0 for the 0 distribution in Table 8.2, identify the functions 0 and 0 as defined in equation (8.25) so that the 0 distribution is a natural conjugate of 0. Hence, derive the hyperparameters of the posterior distribution of 0 using equations (8.27) and (8.28).8.3 In example 8.10, the mean squared error of the expected loss is analytically derived of the sample mean and the Buhlmann credibility estimate, and numerically estimated for the Bayes estimate. Derive the mean squared errors of the sample mean and the Buhlmann premium as predictors for future loss 0. Suggest a simulation procedure for the estimation of the mean squared error of the Bayes predictor for future loss.8.4 Given 0. If the prior distribution of 0, determine the unconditional pf of X.
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