2008 Confidence Interval Detail
246/Williamson
246-907/Jarrell ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 131,119,015 | 1.0018 | 130,883,425 | 38 | 1,002 | .003094083 |
| A | 106,578,431 | 1.0057 | 105,974,377 | 39 | 594 | .005172956 |
| A | 134,875,903 | 1.0271 | 131,317,207 | 34 | 598 | .003685327 |
| A | 149,585,206 | 0.9703 | 154,163,873 | 33 | 450 | .006247008 |
| D3 | 87,896,444 | 0.9653 | 91,056,090 | 22 | 1,637 | .007426977 |
| Random Totals: | 610,054,999 | 613,394,972 | 166 | 4,281 | ||
| Catg D1 Exception Values: | 4,693,663 | 3,766,672 | ||||
| Total Test Values (4): | 614,748,662 | 617,161,644 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 30,858,082 |
Confidence Interval Values (5)
| State Lower Limit: | 586,303,562 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 614,748,662 | (Within Confidence Interval) |
| State Upper Limit: | 648,019,726 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 624,588,586 | (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