2009 Confidence Interval Detail
227/Travis
027-904/Marble Falls ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 90,109,224 | 0.9906 | 90,964,288 | 15 | 341 | .012311322 |
| A | 105,957,190 | 1.0490 | 101,007,807 | 15 | 206 | .018298779 |
| A | 95,509,469 | 1.0045 | 95,081,602 | 17 | 114 | .003469157 |
| A | 85,700,742 | 1.0656 | 80,424,870 | 16 | 46 | .013002892 |
| C | 17,171,002 | 0.9544 | 17,991,410 | 12 | 212 | .017102274 |
| C | 16,571,583 | 0.9923 | 16,700,174 | 12 | 82 | .005260246 |
| C | 12,095,946 | 0.9793 | 12,351,625 | 10 | 36 | .001985114 |
| C | 9,458,290 | 0.9855 | 9,597,453 | 9 | 16 | .001047826 |
| D3 | 61,350,284 | 1.0097 | 60,760,903 | 22 | 635 | .006388001 |
| Random Totals: | 493,923,730 | 484,880,132 | 128 | 1,688 | ||
| Catg D1 Exception Values: | 1,389,605 | 873,551 | ||||
| Total Test Values (4): | 495,313,335 | 485,753,683 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 24,287,684 |
Confidence Interval Values (5)
| State Lower Limit: | 461,465,999 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 495,313,335 | (Within Confidence Interval) |
| State Upper Limit: | 510,041,367 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 518,927,989 | (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