2007 Confidence Interval Detail
025/Brown
025-906/Zephyr ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 993,695 | 1.0118 | 982,106 | 8 | 48 | .003084483 |
| A | 1,008,580 | 0.8640 | 1,167,338 | 7 | 25 | .057492079 |
| A | 1,026,869 | 0.9674 | 1,061,473 | 6 | 16 | .003206354 |
| A | 938,847 | 0.9708 | 967,086 | 5 | 9 | .000101568 |
| D3 | 16,333,109 | 1.0808 | 15,112,055 | 28 | 822 | .075789173 |
| Random Totals: | 20,301,100 | 19,290,058 | 54 | 920 | ||
| Catg J Exception Values: | 6,518,080 | 6,689,592 | ||||
| Catg D1 Exception Values: | 3,304,500 | 2,809,320 | ||||
| Total Test Values (4): | 30,123,680 | 28,788,970 |
Margin of Error
| Margin of Error Percent: | 5.4341611 |
|---|---|
| Margin of Error Value: | 1,564,439 |
Confidence Interval Values (5)
| State Lower Limit: | 27,224,531 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 30,123,680 | (Within Confidence Interval) |
| State Upper Limit: | 30,353,409 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 29,318,640 | (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