2009 Confidence Interval Detail
113/Houston
113-901/Crockett ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 35,058,440 | 0.8874 | 39,506,919 | 19 | 982 | .060695483 |
| A | 36,430,950 | 1.0322 | 35,294,468 | 19 | 614 | .037420684 |
| A | 36,023,340 | 0.9689 | 37,179,626 | 11 | 362 | .003359550 |
| A | 37,418,410 | 1.0053 | 37,221,138 | 9 | 189 | .005590075 |
| D3 | 78,063,310 | 0.9600 | 81,315,948 | 19 | 3,700 | .028969032 |
| F1 | 18,172,690 | 1.0323 | 17,604,078 | 7 | 176 | .007929527 |
| F1 | 18,585,720 | 0.9474 | 19,617,606 | 6 | 43 | .005255194 |
| F1 | 18,876,060 | 1.0311 | 18,306,721 | 5 | 14 | .004432495 |
| F1 | 14,742,230 | 0.9707 | 15,187,215 | 3 | 4 | .000235295 |
| L1 | 7,335,390 | 1.1051 | 6,637,761 | 7 | 188 | .025135169 |
| L1 | 7,955,780 | 0.9876 | 8,055,670 | 6 | 54 | .000608554 |
| L1 | 10,862,870 | 1.0182 | 10,668,700 | 5 | 24 | .002318471 |
| L1 | 9,378,480 | 1.0168 | 9,223,525 | 3 | 4 | .000076858 |
| Random Totals: | 328,903,670 | 335,819,375 | 119 | 6,354 | ||
| Catg J Exception Values: | 14,240,208 | 14,142,287 | ||||
| Catg D1 Exception Values: | 15,672,820 | 16,886,402 | ||||
| Total Test Values (4): | 358,816,698 | 366,848,064 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 18,342,403 |
Confidence Interval Values (5)
| State Lower Limit: | 348,505,661 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 358,816,698 | (Within Confidence Interval) |
| State Upper Limit: | 385,190,467 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 406,381,477 | (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