2009 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 | 151,216,985 | 0.9956 | 151,885,280 | 71 | 1,200 | .003553955 |
| A | 137,816,878 | 0.9803 | 140,586,431 | 37 | 750 | .003294948 |
| A | 109,981,338 | 1.0207 | 107,750,894 | 14 | 466 | .003981100 |
| A | 114,618,279 | 0.9800 | 116,957,428 | 15 | 334 | .004645144 |
| D3 | 80,916,881 | 1.0847 | 74,598,397 | 12 | 1,629 | .051986289 |
| Random Totals: | 594,550,361 | 591,778,430 | 149 | 4,379 | ||
| Catg D1 Exception Values: | 4,843,841 | 3,657,346 | ||||
| Total Test Values (4): | 599,394,202 | 595,435,776 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 29,771,789 |
Confidence Interval Values (5)
| State Lower Limit: | 565,663,987 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 599,394,202 | (Within Confidence Interval) |
| State Upper Limit: | 625,207,565 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 622,483,531 | (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