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Estimation, Evaluation, and Selection of Actuarial Models

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122 APPENDIX A. SOLUTIONS TO EXERCISES<br />

For Data Set C the parameter estimates are ˆτ =0.47936 <strong>and</strong> ˆθ =11, 976. The plot is given<br />

below.<br />

Weibull Fit<br />

0.00006<br />

0.00005<br />

f(x)<br />

0.00004<br />

0.00003<br />

0.00002<br />

Model<br />

Empirical<br />

0.00001<br />

0<br />

0 50000 100000 150000 200000 250000 300000<br />

x<br />

Pdf <strong>and</strong> histogram for Data Set C<br />

Exercise 76 For Data Set B truncated at 50, the plot is given below.<br />

Weibull Fit<br />

D(x)<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

-0.02<br />

-0.04<br />

-0.06<br />

-0.08<br />

-0.1<br />

0 500 1000 1500 2000 2500 3000 3500<br />

x<br />

Difference plot for Data Set B truncated at 50<br />

For Data Set B censored at 1,000, the plot is given below.

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