2007 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 | 48,461,111 | 0.9799 | 49,455,160 | 23 | 1,328 | .001389961 |
| A | 48,459,378 | 0.9875 | 49,072,788 | 21 | 712 | .002628085 |
| A | 48,524,921 | 0.9860 | 49,213,916 | 19 | 466 | .001904956 |
| A | 48,374,366 | 0.9755 | 49,589,304 | 11 | 280 | .001199488 |
| D3 | 113,215,130 | 0.9541 | 118,661,702 | 34 | 3,560 | .022382571 |
| F1 | 8,653,563 | 0.7128 | 12,140,240 | 8 | 94 | .110774707 |
| F1 | 8,449,446 | 0.7971 | 10,600,233 | 6 | 28 | .132730434 |
| F1 | 8,585,411 | 0.9475 | 9,061,120 | 7 | 15 | .131478524 |
| F1 | 8,210,025 | 0.8462 | 9,702,228 | 4 | 7 | .030951191 |
| G1 | 6,642,580 | 0.7999 | 8,304,263 | 6 | 57 | .021849093 |
| G1 | 6,467,870 | 0.9058 | 7,140,506 | 5 | 18 | .082908464 |
| G1 | 6,963,730 | 1.0070 | 6,915,323 | 4 | 9 | .009546003 |
| Random Totals: | 361,007,531 | 379,856,783 | 148 | 6,574 | ||
| Catg D1 Exception Values: | 8,648,404 | 5,612,863 | ||||
| Catg G1 Exception Values: | 5,650,650 | 5,408,379 | ||||
| Total Test Values (4): | 375,306,585 | 390,878,025 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 19,543,901 |
Confidence Interval Values (5)
| State Lower Limit: | 371,334,124 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 375,306,585 | (Within Confidence Interval) |
| State Upper Limit: | 410,421,926 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 368,799,120 | (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