2006 Confidence Interval Detail
246/Williamson
246-913/Leander ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,661,977,374 | 0.9703 | 1,712,848,989 | 65 | 11,738 | .004022272 |
| A | 1,662,164,597 | 0.9612 | 1,729,259,880 | 64 | 8,444 | .004630605 |
| A | 1,661,824,550 | 0.9820 | 1,692,285,692 | 65 | 5,678 | .008035431 |
| A | 1,661,931,144 | 0.9412 | 1,765,757,697 | 65 | 2,834 | .007579650 |
| B | 139,773,914 | 0.9521 | 146,805,917 | 6 | 9 | .009468829 |
| B | 143,795,502 | 1.0153 | 141,628,585 | 4 | 6 | .009467737 |
| C | 125,910,308 | 0.8881 | 141,774,922 | 14 | 3,090 | .057538834 |
| C | 126,346,105 | 0.8806 | 143,477,294 | 42 | 1,019 | .027424301 |
| C | 125,443,224 | 0.9489 | 132,198,571 | 20 | 307 | .013552898 |
| C | 125,860,101 | 0.9856 | 127,698,966 | 6 | 80 | .001713115 |
| F1 | 185,536,245 | 0.8511 | 217,995,823 | 8 | 295 | .069282436 |
| F1 | 184,794,491 | 1.0156 | 181,955,978 | 8 | 102 | .003362244 |
| F1 | 195,217,313 | 1.0117 | 192,959,685 | 6 | 37 | .002301829 |
| Random Totals: | 8,000,574,868 | 8,326,647,999 | 373 | 33,639 | ||
| Catg D1 Exception Values: | 4,590,046 | 4,350,166 | ||||
| Catg B Exception Values: | 253,830,162 | 254,798,831 | ||||
| Catg F1 Exception Values: | 184,582,087 | 178,517,781 | ||||
| Total Test Values (4): | 8,443,577,163 | 8,764,314,777 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 438,215,739 |
Confidence Interval Values (5)
| State Lower Limit: | 8,326,099,038 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 8,443,577,163 | (Within Confidence Interval) |
| State Upper Limit: | 9,202,530,516 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,099,811,639 | (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