2008 Confidence Interval Detail
072/Erath
072-903/Stephenville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 113,154,520 | 0.9763 | 115,901,383 | 62 | 1,884 | .008613901 |
| A | 113,660,950 | 0.9533 | 119,228,942 | 58 | 1,141 | .018364920 |
| A | 132,219,730 | 0.9815 | 134,711,900 | 63 | 987 | .003295474 |
| A | 135,368,310 | 0.9749 | 138,853,534 | 24 | 585 | .006351579 |
| D3 | 205,515,340 | 0.8891 | 231,149,859 | 46 | 4,471 | .035571308 |
| F1 | 53,582,220 | 1.0237 | 52,341,721 | 11 | 349 | .021509370 |
| F1 | 57,007,540 | 1.0213 | 55,818,604 | 10 | 134 | .004293117 |
| F1 | 49,733,530 | 0.9948 | 49,993,496 | 9 | 48 | .004194805 |
| F1 | 64,967,290 | 0.8562 | 75,878,638 | 6 | 17 | .083671126 |
| L1 | 20,954,250 | 0.9921 | 21,121,107 | 7 | 432 | .002196834 |
| L1 | 23,953,060 | 1.0101 | 23,713,553 | 7 | 111 | .002204240 |
| L1 | 20,818,970 | 1.0181 | 20,448,846 | 7 | 31 | .001503369 |
| L1 | 24,567,710 | 0.9990 | 24,592,302 | 5 | 11 | .000139275 |
| Random Totals: | 1,015,503,420 | 1,063,753,885 | 315 | 10,201 | ||
| Catg D1 Exception Values: | 16,517,160 | 11,406,241 | ||||
| Total Test Values (4): | 1,032,020,580 | 1,075,160,126 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 53,758,006 |
Confidence Interval Values (5)
| State Lower Limit: | 1,021,402,120 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,032,020,580 | (Within Confidence Interval) |
| State Upper Limit: | 1,128,918,132 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,228,224,841 | (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