2011 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 | 3,411,004,217 | 0.9530 | 3,579,227,930 | 41 | 18,505 | .008487248 |
| A | 3,700,999,550 | 0.9457 | 3,913,502,749 | 44 | 7,787 | .008358534 |
| A | 3,642,147,837 | 0.9543 | 3,816,564,851 | 44 | 3,931 | .010401985 |
| A | 3,836,975,241 | 0.9370 | 4,094,957,568 | 43 | 1,908 | .013435636 |
| B | 213,614,113 | 0.9011 | 237,059,275 | 12 | 92 | .018185795 |
| B | 198,021,414 | 0.9707 | 203,998,572 | 8 | 31 | .002390021 |
| B | 159,356,591 | 0.9864 | 161,553,722 | 8 | 10 | .010197725 |
| C | 74,199,097 | 0.9534 | 77,825,778 | 11 | 414 | .003588277 |
| C | 64,049,753 | 1.0293 | 62,226,516 | 10 | 93 | .007576295 |
| C | 90,007,119 | 0.9523 | 94,515,509 | 10 | 67 | .039490279 |
| C | 80,778,562 | 1.0312 | 78,334,525 | 10 | 21 | .015844570 |
| F1 | 964,303,106 | 0.9049 | 1,065,646,045 | 11 | 927 | .010615998 |
| F1 | 975,874,398 | 0.9937 | 982,061,385 | 10 | 212 | .020536616 |
| F1 | 1,009,106,420 | 0.9684 | 1,042,034,717 | 10 | 72 | .009791018 |
| F1 | 1,003,134,632 | 0.9923 | 1,010,918,706 | 6 | 18 | .002316787 |
| L1 | 266,954,869 | 0.9567 | 279,037,179 | 10 | 2,193 | .035327083 |
| L1 | 271,191,007 | 0.9793 | 276,923,320 | 10 | 322 | .005687833 |
| L1 | 270,485,227 | 0.9599 | 281,784,797 | 10 | 98 | .004022981 |
| L1 | 219,576,070 | 0.9628 | 228,059,898 | 7 | 24 | .004251408 |
| Random Totals: | 20,451,779,223 | 21,486,233,042 | 315 | 36,725 | ||
| Catg D1 Exception Values: | 368,612 | 368,899 | ||||
| Catg B Exception Values: | 185,835,517 | 198,327,000 | ||||
| Total Test Values (4): | 20,637,983,352 | 21,684,928,941 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,084,246,447 |
Confidence Interval Values (5)
| State Lower Limit: | 20,600,682,494 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 20,637,983,352 | (Within Confidence Interval) |
| State Upper Limit: | 22,769,175,388 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 19,577,772,892 | (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