2007 Confidence Interval Detail
091/Grayson
091-910/Whitewright ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 15,891,210 | 0.9705 | 16,374,250 | 15 | 356 | .073338129 |
| A | 15,862,491 | 0.9726 | 16,309,368 | 16 | 209 | .017147797 |
| A | 15,875,086 | 0.9304 | 17,062,646 | 15 | 150 | .012729325 |
| A | 15,803,828 | 1.0399 | 15,197,450 | 12 | 89 | .030444548 |
| D3 | 49,366,060 | 0.9395 | 52,545,035 | 21 | 1,862 | .019471963 |
| F1 | 1,894,081 | 0.7159 | 2,645,734 | 7 | 43 | .037561406 |
| F1 | 1,985,318 | 0.7467 | 2,658,789 | 6 | 18 | .105311211 |
| F1 | 2,091,981 | 0.8783 | 2,381,852 | 4 | 8 | .004076772 |
| Random Totals: | 118,770,055 | 125,175,124 | 96 | 2,735 | ||
| Catg J Exception Values: | 8,146,000 | 8,295,428 | ||||
| Catg D1 Exception Values: | 5,948,598 | 4,379,973 | ||||
| Catg F1 Exception Values: | 2,189,746 | 1,988,509 | ||||
| Total Test Values (4): | 135,054,399 | 139,839,034 |
Margin of Error
| Margin of Error Percent: | 5.0000002 |
|---|---|
| Margin of Error Value: | 6,991,952 |
Confidence Interval Values (5)
| State Lower Limit: | 132,847,082 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 135,054,399 | (Within Confidence Interval) |
| State Upper Limit: | 146,830,986 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 132,737,780 | (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