2011 Confidence Interval Detail
236/Walker
236-902/Huntsville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 219,503,061 | 1.0199 | 215,220,179 | 12 | 3,517 | .006165292 |
| A | 218,387,750 | 0.9970 | 219,044,885 | 18 | 1,944 | .009331994 |
| A | 240,539,962 | 1.0307 | 233,375,339 | 26 | 1,555 | .002405095 |
| A | 273,348,650 | 1.0225 | 267,333,643 | 11 | 1,106 | .003349336 |
| B | 49,807,670 | 0.9659 | 51,566,073 | 11 | 140 | .003315381 |
| B | 65,024,200 | 0.9704 | 67,007,626 | 8 | 17 | .000210126 |
| D3 | 269,987,134 | 0.7338 | 367,930,136 | 19 | 7,796 | .594037844 |
| F1 | 59,716,970 | 0.9669 | 61,761,268 | 10 | 347 | .003899426 |
| F1 | 58,979,100 | 1.0332 | 57,083,914 | 9 | 110 | .005287137 |
| F1 | 66,284,800 | 1.0226 | 64,819,871 | 8 | 45 | .015452919 |
| F1 | 53,864,990 | 0.8971 | 60,043,462 | 5 | 10 | .002087427 |
| L1 | 25,114,860 | 1.0072 | 24,935,326 | 10 | 276 | .001120684 |
| L1 | 26,630,900 | 1.0114 | 26,330,730 | 10 | 62 | .000788821 |
| L1 | 25,887,620 | 1.0028 | 25,815,337 | 8 | 21 | .000520968 |
| L1 | 16,222,770 | 1.0426 | 15,559,918 | 3 | 3 | .002075971 |
| Random Totals: | 1,669,300,437 | 1,757,827,707 | 168 | 16,949 | ||
| Catg D1 Exception Values: | 33,828,242 | 31,362,824 | ||||
| Catg B Exception Values: | 92,012,360 | 93,834,328 | ||||
| Total Test Values (4): | 1,795,141,039 | 1,883,024,859 |
Margin of Error
| Margin of Error Percent: | 6.8326484 |
|---|---|
| Margin of Error Value: | 128,660,467 |
Confidence Interval Values (5)
| State Lower Limit: | 1,754,364,392 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,795,141,039 | (Within Confidence Interval) |
| State Upper Limit: | 2,011,685,326 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,899,265,243 | (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