2008 Confidence Interval Detail
014/Bell
014-910/Troy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 22,039,218 | 1.0033 | 21,966,728 | 11 | 377 | .017334432 |
| A | 26,238,721 | 1.0124 | 25,917,346 | 14 | 295 | .007707128 |
| A | 25,700,028 | 1.0147 | 25,327,711 | 13 | 212 | .017824761 |
| A | 31,722,203 | 0.9842 | 32,231,460 | 13 | 186 | .005351938 |
| D3 | 80,878,592 | 0.9995 | 80,919,052 | 20 | 2,270 | .013688577 |
| Random Totals: | 186,578,762 | 186,362,297 | 71 | 3,340 | ||
| Catg J Exception Values: | 21,496,333 | 21,382,993 | ||||
| Catg D1 Exception Values: | 9,491,904 | 8,118,252 | ||||
| Total Test Values (4): | 217,566,999 | 215,863,542 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 10,793,177 |
Confidence Interval Values (5)
| State Lower Limit: | 205,070,365 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 217,566,999 | (Within Confidence Interval) |
| State Upper Limit: | 226,656,719 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 221,534,592 | (See ISD Summary Worksheet) |
Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories