2009 Confidence Interval Detail
133/Kerr
133-901/Center Point ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 18,072,621 | 0.8743 | 20,670,961 | 8 | 349 | .044834623 |
| A | 17,433,943 | 0.9284 | 18,778,482 | 7 | 183 | .012418694 |
| A | 17,137,310 | 0.8772 | 19,536,377 | 8 | 109 | .023278094 |
| A | 20,072,264 | 0.9222 | 21,765,630 | 7 | 80 | .019201689 |
| D3 | 124,243,492 | 0.8643 | 143,750,425 | 21 | 2,119 | .080150636 |
| F1 | 3,212,211 | 0.9547 | 3,364,629 | 7 | 32 | .059402383 |
| F1 | 3,955,182 | 0.9013 | 4,388,308 | 7 | 12 | .020116595 |
| F1 | 3,047,249 | 1.0238 | 2,976,410 | 3 | 4 | .003278030 |
| L1 | 2,796,207 | 0.9988 | 2,799,566 | 6 | 27 | .003661128 |
| L1 | 5,611,397 | 0.9353 | 5,999,569 | 4 | 7 | .042051904 |
| Random Totals: | 215,581,876 | 244,030,357 | 78 | 2,922 | ||
| Catg D1 Exception Values: | 3,254,466 | 3,524,834 | ||||
| Catg F1 Exception Values: | 3,128,295 | 2,920,321 | ||||
| Catg L1 Exception Values: | 4,747,451 | 4,482,543 | ||||
| Total Test Values (4): | 226,712,088 | 254,958,055 |
Margin of Error
| Margin of Error Percent: | 7.1503495 |
|---|---|
| Margin of Error Value: | 18,230,392 |
Confidence Interval Values (5)
| Local Test Value: | 226,712,088 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 236,727,663 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 273,188,447 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 211,203,188 | (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