2009 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 | 1,030,601,561 | 0.9818 | 1,049,706,214 | 75 | 8,092 | .004498169 |
| A | 1,160,032,410 | 1.0106 | 1,147,865,041 | 75 | 7,551 | .003921685 |
| A | 1,207,450,859 | 1.0111 | 1,194,195,291 | 75 | 6,594 | .003932989 |
| A | 1,339,287,323 | 1.0329 | 1,296,628,253 | 75 | 5,521 | .009535852 |
| B | 118,304,876 | 1.1424 | 103,558,190 | 7 | 336 | .013360772 |
| B | 224,306,332 | 0.9477 | 236,684,955 | 4 | 15 | .001267306 |
| B | 89,077,180 | 0.9793 | 90,960,053 | 4 | 4 | .002127007 |
| B | 112,179,831 | 1.0092 | 111,157,185 | 2 | 4 | .000326138 |
| F1 | 350,191,943 | 1.0664 | 328,387,043 | 7 | 425 | .014223992 |
| F1 | 387,192,057 | 1.0111 | 382,941,407 | 7 | 114 | .000314803 |
| F1 | 337,309,901 | 0.9575 | 352,281,881 | 6 | 30 | .013828793 |
| F1 | 248,175,706 | 1.0399 | 238,653,434 | 4 | 9 | .001542068 |
| L1 | 224,556,197 | 0.9986 | 224,871,016 | 10 | 474 | .006916448 |
| L1 | 185,555,454 | 0.9837 | 188,630,125 | 6 | 52 | .001846407 |
| L1 | 204,581,895 | 1.0733 | 190,610,170 | 6 | 10 | .009517939 |
| Random Totals: | 7,218,803,525 | 7,137,130,258 | 363 | 29,231 | ||
| Catg D1 Exception Values: | 4,628,918 | 4,530,163 | ||||
| Catg C Exception Values: | 417,030 | 414,500 | ||||
| Total Test Values (4): | 7,223,849,473 | 7,142,074,921 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 357,103,746 |
Confidence Interval Values (5)
| State Lower Limit: | 6,784,971,175 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,223,849,473 | (Within Confidence Interval) |
| State Upper Limit: | 7,499,178,667 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,465,055,865 | (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