2008 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 | 32,860,820 | 0.9603 | 34,219,327 | 7 | 958 | .033434925 |
| A | 34,671,710 | 0.9062 | 38,260,550 | 7 | 616 | .004986934 |
| A | 37,411,380 | 0.9533 | 39,244,078 | 7 | 400 | .027266987 |
| A | 38,228,890 | 1.0681 | 35,791,490 | 7 | 201 | .010046430 |
| D3 | 75,686,650 | 0.9465 | 79,964,765 | 18 | 3,679 | .012105236 |
| F1 | 16,328,810 | 0.9452 | 17,275,508 | 7 | 171 | .005738658 |
| F1 | 15,699,940 | 1.0279 | 15,273,801 | 7 | 45 | .017723905 |
| F1 | 19,648,830 | 1.0254 | 19,162,112 | 7 | 16 | .004002240 |
| L1 | 8,992,510 | 0.9973 | 9,016,856 | 7 | 217 | .000435492 |
| L1 | 10,231,380 | 1.0046 | 10,184,531 | 9 | 63 | .002949259 |
| L1 | 8,312,500 | 1.0802 | 7,695,334 | 5 | 17 | .016765225 |
| L1 | 8,423,820 | 1.0131 | 8,314,895 | 2 | 4 | .000569040 |
| Random Totals: | 306,497,240 | 314,403,247 | 90 | 6,387 | ||
| Catg J Exception Values: | 14,131,971 | 13,634,524 | ||||
| Catg D1 Exception Values: | 14,856,190 | 16,023,559 | ||||
| Catg F1 Exception Values: | 16,750,140 | 18,714,924 | ||||
| Total Test Values (4): | 352,235,541 | 362,776,254 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 18,138,813 |
Confidence Interval Values (5)
| State Lower Limit: | 344,637,441 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 352,235,541 | (Within Confidence Interval) |
| State Upper Limit: | 380,915,067 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 390,058,803 | (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