2009 Confidence Interval Detail
226/Tom Green
226-901/Christoval ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 22,829,400 | 0.9949 | 22,946,427 | 16 | 316 | .023496402 |
| A | 27,342,950 | 0.9998 | 27,348,420 | 16 | 187 | .008508258 |
| A | 25,177,900 | 1.0034 | 25,092,585 | 15 | 120 | .003064840 |
| A | 26,601,750 | 1.0073 | 26,408,965 | 16 | 88 | .003228354 |
| D3 | 28,630,785 | 0.9002 | 31,804,916 | 28 | 1,619 | .083168781 |
| G1 | 3,718,000 | 0.8591 | 4,327,785 | 6 | 17 | .014411309 |
| G1 | 2,854,150 | 0.9740 | 2,930,339 | 3 | 4 | .023984664 |
| G1 | 6,096,490 | 1.0144 | 6,009,947 | 2 | 3 | .000502736 |
| Random Totals: | 143,251,425 | 146,869,384 | 102 | 2,354 | ||
| Catg D1 Exception Values: | 10,726,890 | 10,509,086 | ||||
| Catg G1 Exception Values: | 5,846,240 | 6,046,281 | ||||
| Total Test Values (4): | 159,824,555 | 163,424,751 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 8,171,238 |
Confidence Interval Values (5)
| State Lower Limit: | 155,253,513 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 159,824,555 | (Within Confidence Interval) |
| State Upper Limit: | 171,595,989 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 145,526,498 | (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