2007 Confidence Interval Detail
236/Walker
236-901/New Waverly ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 14,590,443 | 1.0371 | 14,068,502 | 7 | 353 | .082120045 |
| A | 14,558,365 | 0.9408 | 15,474,453 | 7 | 203 | .032803286 |
| A | 14,579,835 | 0.8994 | 16,210,624 | 8 | 139 | .003365344 |
| A | 14,486,083 | 0.9626 | 15,048,912 | 7 | 77 | .021129979 |
| C | 8,225,179 | 0.6869 | 11,974,347 | 8 | 529 | .154039134 |
| C | 2,187,969 | 0.9960 | 2,196,756 | 7 | 69 | .043844677 |
| C | 3,141,487 | 0.9299 | 3,378,306 | 9 | 74 | .076932387 |
| C | 3,698,329 | 1.0140 | 3,647,267 | 6 | 56 | .015692958 |
| D3 | 68,352,180 | 0.8773 | 77,911,980 | 20 | 1,921 | .089687916 |
| Random Totals: | 143,819,870 | 159,911,147 | 79 | 3,421 | ||
| Catg J Exception Values: | 7,172,336 | 6,923,261 | ||||
| Catg D1 Exception Values: | 5,685,430 | 5,329,504 | ||||
| Total Test Values (4): | 156,677,636 | 172,163,912 |
Margin of Error
| Margin of Error Percent: | 6.7286302 |
|---|---|
| Margin of Error Value: | 11,584,273 |
Confidence Interval Values (5)
| Local Test Value: | 156,677,636 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 160,579,639 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 183,748,185 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 172,995,061 | (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