Exam MAS-I Practice Question 165
Study guide: Exam MAS-I
Mean claim severity (in $000) is compared across five territories, with 5 claims from each. The one-way ANOVA gives a mean squared error of \hat\sigma^2 = 1.8 on 20 degrees of freedom. Before seeing the data, the actuary decided to build Bonferroni intervals for all 10 pairwise differences in territory means, with 90% family-wise confidence.
The df = 20 row of the t table (two-sided tail areas) is:
| Two-sided area | 0.20 | 0.10 | 0.05 | 0.02 | 0.01 |
|---|---|---|---|---|---|
df = 20 |
1.325 | 1.725 | 2.086 | 2.528 | 2.845 |
Calculate the half-width of each Bonferroni interval. Give your answer to two decimal places.
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