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Houston County
2020 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 | 21,709,280 | 1.0379 | 20,916,543 | 14 | 382 | 0.045713765 |
| A | 23,041,940 | 1.0278 | 22,418,700 | 16 | 232 | 0.085412588 |
| A | 30,032,840 | 0.9580 | 31,349,520 | 16 | 191 | 0.036491054 |
| A | 30,555,050 | 0.8898 | 34,339,234 | 15 | 97 | 0.019335224 |
| E | 111,453,400 | 1.0717 | 103,996,827 | 25 | 1,373 | 0.142900376 |
| Random Totals: | 216,792,510 | 213,020,824 | 86 | 2,275 | ||
| CATG D1 EXCEPTION VALUES: | 18,061,240 | 18,159,463 | ||||
| CATG J EXCEPTION VALUES: | 6,158,720 | 6,749,862 | ||||
| Total Test Values | 241,012,470 | 237,930,149 |
Margin of Error
| Margin of Error Percent: | 6.8923265 |
|---|---|
| Margin of Error Value: | 16,398,923 |
Confidence Interval Values(5)
| Local Test Value: | 241,012,470 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 221,531,226 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 254,329,072 | (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