2007 Confidence Interval Detail
237/Waller
237-902/Hempstead ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 29,512,730 | 0.9438 | 31,270,110 | 15 | 778 | .036151996 |
| A | 29,558,588 | 0.9628 | 30,700,652 | 15 | 390 | .009260940 |
| A | 29,396,831 | 0.9382 | 31,333,224 | 15 | 248 | .017728289 |
| A | 29,484,292 | 0.9743 | 30,262,026 | 17 | 147 | .009751723 |
| D3 | 133,469,910 | 1.0541 | 126,619,780 | 20 | 4,220 | .150131404 |
| F1 | 11,959,283 | 0.9200 | 12,999,221 | 8 | 131 | .025281290 |
| F1 | 12,131,731 | 0.8988 | 13,497,698 | 6 | 40 | .045132904 |
| F1 | 12,222,784 | 1.0001 | 12,221,562 | 5 | 14 | .001338651 |
| F1 | 11,234,143 | 1.0473 | 10,726,767 | 2 | 3 | .001751561 |
| L1 | 6,355,014 | 1.1191 | 5,678,683 | 7 | 152 | .015288724 |
| L1 | 6,208,293 | 1.2395 | 5,008,708 | 7 | 31 | .036144274 |
| L1 | 7,038,006 | 0.9749 | 7,219,208 | 4 | 11 | .005421332 |
| L1 | 5,392,649 | 1.1102 | 4,857,367 | 2 | 3 | .000451717 |
| Random Totals: | 323,964,254 | 322,395,006 | 123 | 6,168 | ||
| Catg D1 Exception Values: | 10,460,580 | 10,340,253 | ||||
| Total Test Values (4): | 334,424,834 | 332,735,259 |
Margin of Error
| Margin of Error Percent: | 6.6833082 |
|---|---|
| Margin of Error Value: | 22,237,723 |
Confidence Interval Values (5)
| State Lower Limit: | 310,497,536 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 334,424,834 | (Within Confidence Interval) |
| State Upper Limit: | 354,972,982 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 374,479,962 | (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