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Harris County
2021 Confidence Interval Detail
Harris County
237-904/Waller ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 266,379,254 | 0.9551 | 278,901,952 | 55 | 1,838 | 0.007653862 |
| A | 325,508,676 | 0.9752 | 333,786,583 | 80 | 1,494 | 0.013977217 |
| A | 384,598,697 | 0.9912 | 388,013,213 | 103 | 1,349 | 0.004627286 |
| A | 361,643,098 | 0.9707 | 372,559,079 | 39 | 768 | 0.007878209 |
| C1 | 24,912,603 | 0.7302 | 34,117,506 | 11 | 400 | 0.026793561 |
| C1 | 32,849,186 | 0.7844 | 41,878,106 | 10 | 183 | 0.028232392 |
| C1 | 37,385,535 | 0.8322 | 44,923,738 | 9 | 52 | 0.058192365 |
| C1 | 29,811,733 | 1.0619 | 28,073,955 | 6 | 13 | 0.023390245 |
| F1 | 60,049,191 | 0.9622 | 62,408,222 | 10 | 93 | 0.020843742 |
| F1 | 66,065,317 | 1.0147 | 65,108,226 | 8 | 38 | 0.030636425 |
| F1 | 68,382,460 | 0.9147 | 74,759,440 | 7 | 22 | 0.049483279 |
| F1 | 90,417,104 | 1.1781 | 76,748,242 | 3 | 7 | 0.023396010 |
| Random Totals: | 1,748,002,854 | 1,801,278,262 | 341 | 6,257 | ||
| CATG D1 EXCEPTION VALUES: | 5,190,457 | 4,550,789 | ||||
| Total Test Values | 1,753,193,311 | 1,805,829,051 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 90,291,453 |
Confidence Interval Values(5)
| Local Test Value: | 1,753,193,311 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 1,715,537,598 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,896,120,504 | (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