2007 Confidence Interval Detail
020/Brazoria
020-907/Columbia-Brazoria ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 131,472,120 | 1.0009 | 131,353,901 | 31 | 2,091 | .009974073 |
| A | 131,384,382 | 1.0150 | 129,442,741 | 47 | 1,292 | .008071177 |
| A | 131,399,815 | 0.9895 | 132,794,154 | 37 | 909 | .004008616 |
| A | 131,298,815 | 1.0004 | 131,246,316 | 25 | 553 | .007254420 |
| D3 | 62,596,280 | 0.9890 | 63,292,497 | 22 | 3,456 | .007780944 |
| F1 | 12,806,174 | 0.7567 | 16,923,713 | 8 | 183 | .078112615 |
| F1 | 12,791,030 | 0.9217 | 13,877,650 | 7 | 67 | .034342993 |
| F1 | 13,334,850 | 0.8063 | 16,538,323 | 7 | 26 | .047672961 |
| F1 | 12,218,049 | 0.8243 | 14,822,333 | 4 | 9 | .029935446 |
| Random Totals: | 639,301,515 | 650,291,628 | 188 | 8,586 | ||
| Catg J Exception Values: | 37,070,143 | 35,754,175 | ||||
| Catg D1 Exception Values: | 9,032,889 | 9,644,514 | ||||
| Total Test Values (4): | 685,404,547 | 695,690,317 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 34,784,516 |
Confidence Interval Values (5)
| State Lower Limit: | 660,905,801 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 685,404,547 | (Within Confidence Interval) |
| State Upper Limit: | 730,474,833 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 741,684,872 | (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