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014/Bell
2017 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 | 31,858,101 | 0.9032 | 35,272,477 | 14 | 495 | .012234586 |
| A | 34,088,901 | 1.0028 | 33,993,719 | 13 | 299 | .009465602 |
| A | 38,902,377 | 0.9328 | 41,704,950 | 16 | 268 | .053494278 |
| A | 47,201,827 | 0.9909 | 47,635,308 | 15 | 221 | .009497283 |
| E | 118,042,929 | 0.9531 | 123,851,568 | 20 | 949 | .016289350 |
| Random Totals: | 270,094,135 | 282,458,022 | 78 | 2,232 | ||
| Catg J Exception Values: | 6,968,523 | 7,033,509 | ||||
| Catg D1 Exception Values: | 16,544,600 | 17,184,186 | ||||
| Total Test Values (4): | 293,607,258 | 306,675,717 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 15,333,785 |
Confidence Interval Values (5)
| State Lower Limit: | 291,341,932 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 293,607,258 | (Within Confidence Interval) |
| State Upper Limit: | 322,009,502 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 325,408,150 | (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, D2, E, 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