Top navigation skipped
113/Houston
2018 Confidence Interval Detail
113/Houston
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 | 19,871,840 | 0.8061 | 24,651,830 | 13 | 419 | .046162787 |
| A | 19,802,360 | 0.8364 | 23,675,705 | 13 | 236 | .052945909 |
| A | 20,279,830 | 0.8536 | 23,758,001 | 13 | 151 | .033774912 |
| A | 21,368,480 | 0.8044 | 26,564,495 | 13 | 80 | .061611482 |
| E | 88,228,730 | 0.7446 | 118,491,445 | 18 | 1,788 | .106627637 |
| Random Totals: | 169,551,240 | 217,141,476 | 70 | 2,674 | ||
| Catg J Exception Values: | 5,773,640 | 6,298,247 | ||||
| Catg D1 Exception Values: | 16,981,760 | 17,471,654 | ||||
| Total Test Values (4): | 192,306,640 | 240,911,377 |
Margin of Error
| Margin of Error Percent: | 7.8874698 |
|---|---|
| Margin of Error Value: | 19,001,812 |
Confidence Interval Values (5)
| Local Test Value: | 192,306,640 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 221,909,565 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 259,913,189 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 323,522,573 | (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, 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
(6) Includes local value of unstudied property categories and sub-categories