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240/Webb
2017 Confidence Interval Detail
240/Webb
240-904/Webb CISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| G1 | 54,065,034 | 1.0332 | 52,327,753 | 15 | 562 | .010191809 |
| G1 | 53,702,548 | 1.0349 | 51,891,533 | 15 | 182 | .023515153 |
| G1 | 54,231,817 | 1.0214 | 53,095,572 | 15 | 97 | .003694890 |
| G1 | 53,467,798 | 1.1173 | 47,854,469 | 15 | 44 | .073634545 |
| Random Totals: | 215,467,197 | 205,169,327 | 60 | 885 | ||
| Catg J Exception Values: | 21,381,300 | 21,348,057 | ||||
| Catg D1 Exception Values: | 25,448,268 | 30,827,514 | ||||
| Total Test Values (4): | 262,296,765 | 257,344,898 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 12,867,244 |
Confidence Interval Values (5)
| State Lower Limit: | 244,477,654 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 262,296,765 | (Within Confidence Interval) |
| State Upper Limit: | 270,212,142 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 579,584,054 | (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