2008 Confidence Interval Detail
001/Anderson
001-908/Westwood ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 19,183,620 | 0.9079 | 21,129,662 | 9 | 431 | .022829817 |
| A | 27,675,130 | 0.8399 | 32,950,506 | 8 | 448 | .007209666 |
| A | 19,203,750 | 0.9765 | 19,665,899 | 8 | 251 | .007336431 |
| A | 80,121,085 | 0.9999 | 80,129,098 | 33 | 741 | .033407143 |
| D3 | 61,697,490 | 0.9622 | 64,121,274 | 18 | 2,641 | .022955595 |
| F1 | 4,230,950 | 0.8536 | 4,956,596 | 6 | 59 | .007525538 |
| F1 | 6,563,520 | 1.0220 | 6,422,231 | 6 | 39 | .010261742 |
| F1 | 4,001,650 | 0.9472 | 4,224,715 | 4 | 10 | .001620553 |
| F1 | 5,843,020 | 0.9868 | 5,921,180 | 3 | 8 | .000064071 |
| L1 | 7,399,146 | 1.0340 | 7,155,847 | 6 | 79 | .015445752 |
| L1 | 9,171,585 | 0.9606 | 9,547,767 | 6 | 18 | .003462384 |
| L1 | 3,650,775 | 0.9963 | 3,664,333 | 3 | 3 | .000599594 |
| Random Totals: | 248,741,721 | 259,889,108 | 110 | 4,728 | ||
| Catg D1 Exception Values: | 3,902,207 | 4,205,638 | ||||
| Catg L1 Exception Values: | 30,555,821 | 28,708,571 | ||||
| Total Test Values (4): | 283,199,749 | 292,803,317 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 14,640,166 |
Confidence Interval Values (5)
| State Lower Limit: | 278,163,151 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 283,199,749 | (Within Confidence Interval) |
| State Upper Limit: | 307,443,483 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 411,430,408 | (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