2009 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 | 214,903,084 | 0.9848 | 218,220,028 | 36 | 3,523 | .023390791 |
| A | 219,579,001 | 0.9392 | 233,793,655 | 29 | 2,008 | .007435703 |
| A | 220,898,380 | 0.9567 | 230,896,185 | 33 | 1,450 | .008226022 |
| A | 224,391,000 | 0.9747 | 230,215,451 | 19 | 939 | .002154296 |
| B | 42,322,770 | 1.0205 | 41,472,582 | 7 | 133 | .005434938 |
| B | 38,287,699 | 0.9451 | 40,511,797 | 6 | 14 | .003728376 |
| B | 33,119,940 | 0.9701 | 34,140,748 | 3 | 5 | .000268151 |
| D3 | 242,835,890 | 0.9382 | 258,831,688 | 13 | 7,816 | .003432029 |
| F1 | 55,161,100 | 0.9299 | 59,319,389 | 7 | 335 | .008789430 |
| F1 | 59,389,190 | 0.9124 | 65,091,177 | 7 | 115 | .027167718 |
| F1 | 53,080,470 | 1.0230 | 51,887,067 | 8 | 39 | .014438268 |
| F1 | 62,994,070 | 0.9712 | 64,862,098 | 4 | 15 | .002236434 |
| L1 | 27,882,970 | 1.1008 | 25,329,733 | 8 | 388 | .038415717 |
| L1 | 27,697,370 | 1.0468 | 26,459,085 | 7 | 73 | .008972168 |
| L1 | 32,997,980 | 1.0808 | 30,531,070 | 5 | 29 | .006230944 |
| L1 | 113,386,950 | 1.0360 | 109,446,863 | 3 | 9 | .002413448 |
| Random Totals: | 1,668,927,864 | 1,721,008,616 | 195 | 16,891 | ||
| Catg D1 Exception Values: | 17,036,252 | 17,889,436 | ||||
| Catg B Exception Values: | 54,990,641 | 53,209,921 | ||||
| Total Test Values (4): | 1,740,954,757 | 1,792,107,973 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 89,605,399 |
Confidence Interval Values (5)
| State Lower Limit: | 1,702,502,574 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,740,954,757 | (Within Confidence Interval) |
| State Upper Limit: | 1,881,713,372 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,719,003,787 | (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