2007 Confidence Interval Detail
109/Hill
109-913/Blum ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,642,604 | 0.8234 | 4,423,857 | 7 | 113 | .021392608 |
| A | 3,584,960 | 0.9105 | 3,937,353 | 10 | 65 | .020146224 |
| A | 3,551,013 | 0.9360 | 3,793,817 | 6 | 45 | .027307559 |
| A | 3,570,765 | 1.0125 | 3,526,681 | 6 | 31 | .021027513 |
| D3 | 35,499,170 | 1.0825 | 32,793,691 | 32 | 1,456 | .074426245 |
| Random Totals: | 49,848,512 | 48,475,399 | 61 | 1,710 | ||
| Catg J Exception Values: | 5,169,501 | 5,409,331 | ||||
| Catg D1 Exception Values: | 4,902,490 | 4,008,162 | ||||
| Total Test Values (4): | 59,920,503 | 57,892,892 |
Margin of Error
| Margin of Error Percent: | 5.5924430 |
|---|---|
| Margin of Error Value: | 3,237,627 |
Confidence Interval Values (5)
| State Lower Limit: | 54,655,265 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 59,920,503 | (Within Confidence Interval) |
| State Upper Limit: | 61,130,519 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 74,996,439 | (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