2007 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 | 1,005,109,459 | 0.9560 | 1,051,369,727 | 25 | 8,014 | .005155285 |
| A | 1,003,658,847 | 0.9730 | 1,031,509,606 | 25 | 6,580 | .001071262 |
| A | 1,004,377,682 | 0.9828 | 1,021,955,313 | 25 | 5,530 | .002852743 |
| A | 1,004,193,145 | 0.9910 | 1,013,312,962 | 25 | 4,242 | .006665809 |
| B | 94,218,294 | 0.9837 | 95,779,500 | 19 | 259 | .005726387 |
| B | 104,911,061 | 1.0694 | 98,102,731 | 4 | 8 | .002796352 |
| B | 98,292,653 | 0.9327 | 105,385,068 | 3 | 4 | .031669172 |
| F1 | 309,588,583 | 0.8961 | 345,484,414 | 9 | 351 | .066221230 |
| F1 | 308,021,480 | 0.9038 | 340,807,125 | 7 | 81 | .032643494 |
| F1 | 318,843,635 | 0.9616 | 331,576,160 | 5 | 24 | .032080969 |
| F1 | 294,899,111 | 1.0821 | 272,524,823 | 5 | 10 | .003581085 |
| L1 | 203,875,612 | 1.0199 | 199,897,649 | 7 | 417 | .003807851 |
| L1 | 207,656,807 | 0.9851 | 210,797,693 | 8 | 67 | .004812284 |
| L1 | 208,216,151 | 0.9817 | 212,097,536 | 5 | 19 | .000551290 |
| Random Totals: | 6,165,862,520 | 6,330,600,307 | 172 | 25,606 | ||
| Catg D1 Exception Values: | 4,426,557 | 3,788,497 | ||||
| Catg B Exception Values: | 120,622,076 | 119,870,378 | ||||
| Catg L1 Exception Values: | 355,409,271 | 371,051,649 | ||||
| Total Test Values (4): | 6,646,320,424 | 6,825,310,831 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 341,265,542 |
Confidence Interval Values (5)
| State Lower Limit: | 6,484,045,289 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,646,320,424 | (Within Confidence Interval) |
| State Upper Limit: | 7,166,576,373 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 6,599,540,933 | (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