Timeline for Unexpected Zero Variance for an Unbiased Estimator: Is the Estimator Consistent?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 14, 2021 at 16:55 | comment | added | jld | @AdrianKeister for sure! glad this helped | |
| Jun 14, 2021 at 16:55 | comment | added | Adrian Keister | Excellent! Thanks much! | |
| Jun 14, 2021 at 16:55 | vote | accept | Adrian Keister | ||
| Jun 14, 2021 at 16:47 | comment | added | jld | @AdrianKeister yeah exactly, really you have $$\text E\sum_{ij} Y_iY_j = n \text E[Y_1^2] + n(n-1)\text E[Y_1Y_2] $$. I've learned to be vigilant about this kind of error having made it many times myself :) | |
| Jun 14, 2021 at 16:46 | comment | added | Adrian Keister | I think I see what you're saying: in the $i,j$ sum, when $i=j,$ I can't use the same result as when $i\not=j.$ Is that right? | |
| Jun 14, 2021 at 16:37 | history | answered | jld | CC BY-SA 4.0 |