sigma^{2}_{A}hat | sigma^{2}_{E}hat | |
---|---|---|
usual unbiased estimators | 615.3 | 16.2 |
simple improvements; e.g., H-L est'r | 615.3 | 13.9 |
maximum likelihood estimators | 511.9 | 16.2 |
Klotz-Milton-Zacks estimators | 438.0 | 13.9 |
Stein estimators | 438.0 | 13.9 |
nuhat | nu^{*} | l c b | u c b | |
---|---|---|---|---|
usual unbiased est'rs | 4.9 | 5 | 277.9 | 2685.8 |
Stein estimators | 4.9 | 5 | 277.9 | 2685.8 |
l c b | u c b |
---|---|
189.7 | 1040.9 |
h^{*} = 2.29 xbar / n^{1/3},where xbar is the sample mean.
h | UCV(h) | |
---|---|---|
normal reference | 9.2 | -0.0429 |
exponential reference | 5.2 | -0.0428 |
Freedman-Diaconis | 4.6 | -0.0426 |
oversmoothed | 15.4 | -0.0394 |
Sturges | 12.1 | -0.0412 |