2011 Confidence Interval Detail
014/Bell
014-910/Troy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 25,548,081 | 1.0169 | 25,123,494 | 10 | 419 | .024023921 |
| A | 27,655,616 | 0.9953 | 27,786,211 | 10 | 290 | .002480646 |
| A | 29,850,399 | 1.0163 | 29,371,641 | 11 | 235 | .007880121 |
| A | 29,546,311 | 0.9557 | 30,915,885 | 10 | 157 | .008185755 |
| D3 | 89,475,361 | 0.9872 | 90,635,495 | 15 | 2,334 | .010547976 |
| Random Totals: | 202,075,768 | 203,832,726 | 56 | 3,435 | ||
| Catg J Exception Values: | 5,131,572 | 5,493,131 | ||||
| Catg D1 Exception Values: | 9,949,913 | 14,046,010 | ||||
| Total Test Values (4): | 217,157,253 | 223,371,867 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 11,168,593 |
Confidence Interval Values (5)
| State Lower Limit: | 212,203,274 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 217,157,253 | (Within Confidence Interval) |
| State Upper Limit: | 234,540,460 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 247,309,008 | (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