2009 Confidence Interval Detail
140/Lamb
140-901/Amherst ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,539,380 | 0.9111 | 1,689,584 | 15 | 133 | .004177806 |
| A | 1,876,380 | 0.9579 | 1,958,847 | 15 | 74 | .002574554 |
| A | 1,645,310 | 0.9580 | 1,717,443 | 13 | 34 | .001322480 |
| A | 1,730,580 | 0.9661 | 1,791,305 | 8 | 14 | .000884126 |
| D3 | 2,902,610 | 0.9714 | 2,988,069 | 23 | 627 | .001015853 |
| Random Totals: | 9,694,260 | 10,145,248 | 74 | 882 | ||
| Catg J Exception Values: | 3,315,590 | 3,070,388 | ||||
| Catg D1 Exception Values: | 21,157,901 | 19,339,152 | ||||
| Total Test Values (4): | 34,167,751 | 32,554,788 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,627,739 |
Confidence Interval Values (5)
| State Lower Limit: | 30,927,049 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 34,167,751 | (Within Confidence Interval) |
| State Upper Limit: | 34,182,527 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 47,850,574 | (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