2008 Confidence Interval Detail
227/Travis
227-904/Pflugerville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 838,264,116 | 0.9417 | 890,160,471 | 70 | 6,955 | .004239481 |
| A | 1,040,415,713 | 0.9712 | 1,071,268,238 | 70 | 7,203 | .006502818 |
| A | 1,245,538,050 | 0.9854 | 1,263,992,338 | 70 | 7,196 | .004105396 |
| A | 1,392,396,661 | 0.9920 | 1,403,625,666 | 65 | 6,085 | .004720043 |
| B | 124,538,051 | 0.9837 | 126,601,658 | 13 | 270 | .003556135 |
| B | 69,346,643 | 0.9198 | 75,393,176 | 4 | 6 | .003627814 |
| B | 127,918,483 | 0.9497 | 134,693,570 | 4 | 6 | .001024034 |
| F1 | 349,051,759 | 1.0488 | 332,810,602 | 8 | 418 | .018101150 |
| F1 | 345,869,278 | 1.0063 | 343,703,943 | 6 | 94 | .001254227 |
| F1 | 286,242,991 | 0.9622 | 297,488,039 | 5 | 23 | .003073761 |
| F1 | 339,095,462 | 1.0127 | 334,842,956 | 5 | 13 | .003022521 |
| L1 | 230,766,663 | 0.9725 | 237,292,198 | 7 | 516 | .000926951 |
| L1 | 229,405,178 | 1.0107 | 226,976,529 | 6 | 68 | .000021418 |
| L1 | 220,181,507 | 0.9510 | 231,526,295 | 4 | 13 | .012833701 |
| Random Totals: | 6,839,030,555 | 6,970,375,679 | 337 | 28,866 | ||
| Catg D1 Exception Values: | 4,730,779 | 3,777,335 | ||||
| Catg B Exception Values: | 121,375,902 | 121,150,000 | ||||
| Catg L1 Exception Values: | 265,136,539 | 265,125,275 | ||||
| Total Test Values (4): | 7,230,273,775 | 7,360,428,289 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 368,021,414 |
Confidence Interval Values (5)
| State Lower Limit: | 6,992,406,875 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,230,273,775 | (Within Confidence Interval) |
| State Upper Limit: | 7,728,449,703 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,227,390,259 | (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