2008 Confidence Interval Detail
213/Somervell
213-901/Glen Rose ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 50,742,062 | 0.9267 | 54,755,651 | 14 | 714 | .029253565 |
| A | 49,280,777 | 0.9662 | 51,004,737 | 16 | 357 | .022504830 |
| A | 60,534,023 | 0.9945 | 60,868,801 | 19 | 287 | .003512933 |
| A | 53,679,760 | 1.0233 | 52,457,500 | 16 | 171 | .038648485 |
| D3 | 156,546,409 | 0.9337 | 167,662,428 | 26 | 2,802 | .080526496 |
| F1 | 11,219,815 | 0.8148 | 13,770,023 | 14 | 118 | .020781697 |
| F1 | 12,234,556 | 0.8853 | 13,819,672 | 14 | 43 | .034663573 |
| F1 | 12,331,775 | 0.8232 | 14,980,290 | 9 | 16 | .079754317 |
| F1 | 13,985,122 | 0.8266 | 16,918,851 | 4 | 6 | .096128161 |
| G1 | 41,852,474 | 1.0043 | 41,673,279 | 20 | 47 | .016045979 |
| Random Totals: | 462,406,773 | 487,911,232 | 152 | 4,561 | ||
| Catg J Exception Values: | 32,370,403 | 32,258,276 | ||||
| Catg D1 Exception Values: | 5,644,098 | 5,496,622 | ||||
| Total Test Values (4): | 500,421,274 | 525,666,130 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 26,283,307 |
Confidence Interval Values (5)
| State Lower Limit: | 499,382,823 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 500,421,274 | (Within Confidence Interval) |
| State Upper Limit: | 551,949,437 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 3,134,380,632 | (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