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Houston County
2019 Confidence Interval Detail
Houston County
113-902/Grapeland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 17,983,520 | 0.9778 | 18,391,818 | 15 | 364 | 0.037126368 |
| A | 21,118,910 | 0.8887 | 23,763,824 | 15 | 246 | 0.050271436 |
| A | 27,376,330 | 0.8807 | 31,084,739 | 15 | 202 | 0.170360788 |
| A | 27,682,630 | 0.7931 | 34,904,337 | 16 | 101 | 0.046044440 |
| E | 101,793,020 | 0.9241 | 110,153,685 | 20 | 1386 | 0.041020307 |
| Random Totals: | 195,954,410 | 218,298,403 | 81 | 2,299 | ||
| CATG D1 EXCEPTION VALUES: | 17,446,160 | 17,305,798 | ||||
| CATG J EXCEPTION VALUES: | 7,508,850 | 7,791,100 | ||||
| Total Test Values(2) | 220,909,420 | 243,395,301 |
Margin of Error
| Margin of Error Percent: | 5.1850605 |
|---|---|
| Margin of Error Value: | 12,620,194 |
Confidence Interval Values(5)
| Local Test Value: | 220,909,420 | OUTSIDE CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 230,775,107 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 256,015,495 | (State Test Value plus Margin of Error Percent) |
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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values