2009 Confidence Interval Detail
091/Grayson
091-909/Whitesboro ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 47,956,206 | 0.9221 | 52,007,598 | 14 | 1,228 | .091311051 |
| A | 51,548,301 | 0.9901 | 52,063,732 | 19 | 673 | .041643082 |
| A | 49,549,617 | 0.9646 | 51,368,046 | 18 | 430 | .019567417 |
| A | 50,751,380 | 0.9811 | 51,729,059 | 15 | 275 | .025111885 |
| D3 | 108,452,175 | 0.9657 | 112,304,209 | 20 | 2,909 | .018861106 |
| F1 | 8,313,847 | 0.8483 | 9,800,598 | 17 | 89 | .058234360 |
| F1 | 9,202,518 | 0.8441 | 10,902,166 | 7 | 34 | .068107419 |
| F1 | 11,626,410 | 0.9142 | 12,717,578 | 10 | 20 | .027415005 |
| G1 | 4,820,390 | 1.0772 | 4,474,926 | 6 | 41 | .006796637 |
| G1 | 4,766,124 | 1.0177 | 4,683,231 | 5 | 15 | .010947110 |
| G1 | 4,683,696 | 1.1689 | 4,006,926 | 4 | 8 | .057065257 |
| G1 | 4,237,517 | 1.0718 | 3,953,645 | 2 | 3 | .000386307 |
| Random Totals: | 355,908,181 | 370,011,714 | 137 | 5,725 | ||
| Catg D1 Exception Values: | 6,036,086 | 4,324,804 | ||||
| Catg F1 Exception Values: | 9,203,065 | 9,618,026 | ||||
| Catg G1 Exception Values: | 5,308,435 | 5,123,270 | ||||
| Total Test Values (4): | 376,455,767 | 389,077,814 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 19,453,891 |
Confidence Interval Values (5)
| State Lower Limit: | 369,623,923 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 376,455,767 | (Within Confidence Interval) |
| State Upper Limit: | 408,531,705 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 416,120,763 | (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