2011 Confidence Interval Detail
220/Tarrant
220-907/Keller ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,206,608,873 | 1.0068 | 2,191,705,277 | 75 | 17,244 | .004952629 |
| A | 2,205,460,052 | 0.9833 | 2,242,916,762 | 75 | 11,734 | .007463915 |
| A | 2,142,137,173 | 0.9770 | 2,192,566,195 | 75 | 7,709 | .006802059 |
| A | 2,216,426,795 | 0.9868 | 2,246,074,985 | 75 | 3,996 | .008342936 |
| B | 41,089,430 | 0.8942 | 45,951,051 | 9 | 90 | .006976009 |
| B | 110,381,423 | 0.8751 | 126,135,782 | 5 | 9 | .003877979 |
| B | 36,559,700 | 0.8619 | 42,417,566 | 2 | 2 | .005215828 |
| B | 224,035,260 | 0.8756 | 255,864,847 | 2 | 9 | .002969985 |
| F1 | 295,228,005 | 0.9573 | 308,396,537 | 11 | 344 | .024296835 |
| F1 | 297,143,731 | 0.8086 | 367,479,262 | 9 | 139 | .006880468 |
| F1 | 326,280,181 | 0.8747 | 373,019,528 | 8 | 49 | .011107809 |
| F1 | 290,009,083 | 0.9136 | 317,435,511 | 4 | 9 | .001212690 |
| L1 | 88,198,414 | 1.0365 | 85,092,536 | 11 | 715 | .003236431 |
| L1 | 89,182,499 | 1.0252 | 86,990,342 | 9 | 123 | .009096134 |
| L1 | 92,087,083 | 1.0544 | 87,336,004 | 8 | 34 | .002368636 |
| L1 | 102,556,532 | 1.0402 | 98,593,090 | 4 | 8 | .000280163 |
| Random Totals: | 10,763,384,234 | 11,067,975,275 | 382 | 42,214 | ||
| Catg D1 Exception Values: | 406,681 | 270,313 | ||||
| Total Test Values (4): | 10,763,790,915 | 11,068,245,588 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 553,412,279 |
Confidence Interval Values (5)
| State Lower Limit: | 10,514,833,309 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 10,763,790,915 | (Within Confidence Interval) |
| State Upper Limit: | 11,621,657,867 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 11,035,743,850 | (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