2007 Confidence Interval Detail
101/Harris
101-920/Spring Branch ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,177,740,854 | 0.9874 | 3,218,291,325 | 72 | 18,863 | .004080268 |
| A | 3,174,430,421 | 0.9903 | 3,205,524,004 | 67 | 8,105 | .005161207 |
| A | 3,177,095,651 | 0.9557 | 3,324,365,021 | 74 | 4,080 | .005805571 |
| A | 3,173,773,623 | 0.9765 | 3,250,152,200 | 79 | 1,880 | .005935837 |
| B | 157,725,810 | 1.0994 | 143,465,354 | 6 | 89 | .053393585 |
| B | 156,655,418 | 0.9082 | 172,490,000 | 6 | 33 | .006612626 |
| B | 151,443,276 | 0.8505 | 178,063,817 | 6 | 18 | .079524234 |
| B | 152,407,741 | 0.9969 | 152,881,674 | 3 | 8 | .000404726 |
| C | 68,906,505 | 0.7284 | 94,599,815 | 11 | 442 | .088319342 |
| C | 69,616,475 | 0.8344 | 83,432,976 | 8 | 93 | .027526398 |
| C | 135,583,909 | 0.8771 | 154,582,042 | 8 | 53 | .020233001 |
| F1 | 839,389,103 | 0.9026 | 929,967,985 | 15 | 865 | .055321112 |
| F1 | 839,168,160 | 0.8122 | 1,033,203,841 | 8 | 209 | .098846501 |
| F1 | 856,808,835 | 0.9261 | 925,179,608 | 7 | 74 | .006866113 |
| F1 | 810,981,589 | 0.9746 | 832,117,370 | 5 | 21 | .009488186 |
| L1 | 273,337,714 | 0.9991 | 273,583,940 | 8 | 2,563 | .000929292 |
| L1 | 274,540,364 | 0.9477 | 289,691,215 | 10 | 380 | .011677564 |
| L1 | 278,565,354 | 0.9847 | 282,893,626 | 8 | 116 | .000391833 |
| L1 | 269,292,848 | 1.0700 | 251,675,559 | 8 | 35 | .055750212 |
| Random Totals: | 18,037,463,650 | 18,796,161,372 | 409 | 37,927 | ||
| Catg D1 Exception Values: | 18,340 | 17,438 | ||||
| Total Test Values (4): | 18,037,481,990 | 18,796,178,810 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 939,808,941 |
Confidence Interval Values (5)
| State Lower Limit: | 17,856,369,869 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 18,037,481,990 | (Within Confidence Interval) |
| State Upper Limit: | 19,735,987,751 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 16,894,509,877 | (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