2008 Confidence Interval Detail
228/Trinity
228-903/Trinity ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 33,101,919 | 0.6059 | 54,632,644 | 39 | 1,495 | .174336751 |
| A | 37,686,438 | 0.6459 | 58,347,171 | 29 | 776 | .178136514 |
| A | 36,120,046 | 0.7173 | 50,355,564 | 19 | 416 | .111995355 |
| A | 44,131,592 | 0.6734 | 65,535,480 | 17 | 271 | .286710995 |
| C | 9,559,263 | 0.6058 | 15,779,569 | 20 | 3,447 | 2.181117490 |
| C | 8,852,293 | 1.0137 | 8,732,656 | 15 | 2,081 | .129466261 |
| C | 10,460,025 | 0.5694 | 18,370,258 | 15 | 1,067 | .307553204 |
| C | 7,587,242 | 0.6827 | 11,113,581 | 16 | 275 | .461133962 |
| D3 | 20,072,259 | 0.7949 | 25,251,301 | 25 | 1,648 | .194186042 |
| F1 | 4,613,715 | 0.9297 | 4,962,585 | 10 | 120 | .083618911 |
| F1 | 4,588,146 | 0.9141 | 5,019,304 | 9 | 41 | .023467618 |
| F1 | 4,964,226 | 0.7600 | 6,531,876 | 6 | 16 | .112042771 |
| F1 | 4,157,967 | 0.8262 | 5,032,640 | 5 | 6 | .041289668 |
| Random Totals: | 225,895,131 | 329,664,629 | 225 | 11,659 | ||
| Catg J Exception Values: | 8,299,438 | 8,793,047 | ||||
| Catg D1 Exception Values: | 7,477,786 | 10,325,317 | ||||
| Total Test Values (4): | 241,672,355 | 348,782,993 |
Margin of Error
| Margin of Error Percent: | 7.0803100 |
|---|---|
| Margin of Error Value: | 24,694,917 |
Confidence Interval Values (5)
| Local Test Value: | 241,672,355 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 324,088,076 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 373,477,910 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 221,128,001 | (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