2008 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 | 1,961,039,282 | 1.0024 | 1,956,344,056 | 25 | 13,531 | .005879180 |
| A | 2,028,241,909 | 0.9937 | 2,041,100,844 | 25 | 9,814 | .005572625 |
| A | 1,031,054,050 | 1.0003 | 1,030,744,827 | 25 | 3,310 | .003482853 |
| A | 242,615,214 | 0.9870 | 245,810,754 | 32 | 415 | .006552049 |
| B | 104,468,374 | 1.0536 | 99,153,734 | 8 | 152 | .000297514 |
| B | 171,723,353 | 0.8995 | 190,909,787 | 5 | 7 | .011795984 |
| C | 63,493,374 | 0.9479 | 66,983,199 | 7 | 1,572 | .065860924 |
| C | 50,023,313 | 0.9703 | 51,554,481 | 7 | 294 | .015805993 |
| C | 86,412,446 | 1.0339 | 83,579,114 | 7 | 169 | .134646919 |
| C | 96,050,970 | 0.9812 | 97,891,327 | 7 | 59 | .000921118 |
| F1 | 191,938,510 | 1.0095 | 190,132,254 | 8 | 291 | .031599314 |
| F1 | 253,934,024 | 0.8288 | 306,387,577 | 7 | 130 | .106641031 |
| F1 | 400,556,229 | 1.0099 | 396,629,596 | 9 | 41 | .009112035 |
| L1 | 62,329,484 | 0.9466 | 65,845,641 | 7 | 496 | .015856087 |
| L1 | 66,371,332 | 0.9861 | 67,306,898 | 7 | 91 | .003300233 |
| L1 | 41,408,705 | 0.8952 | 46,256,373 | 5 | 12 | .010616147 |
| L1 | 131,325,856 | 1.0067 | 130,451,829 | 3 | 9 | .005694906 |
| Random Totals: | 6,982,986,425 | 7,067,082,291 | 194 | 30,393 | ||
| Catg D1 Exception Values: | 1,281,275 | 973,921 | ||||
| Total Test Values (4): | 6,984,267,700 | 7,068,056,212 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 353,402,811 |
Confidence Interval Values (5)
| State Lower Limit: | 6,714,653,401 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 6,984,267,700 | (Within Confidence Interval) |
| State Upper Limit: | 7,421,459,023 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,223,252,855 | (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