2011 Confidence Interval Detail
060/Delta
060-902/Cooper ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 14,709,190 | 0.6853 | 21,463,870 | 10 | 540 | .281299293 |
| A | 15,240,370 | 0.9119 | 16,712,765 | 10 | 309 | .023089678 |
| A | 15,588,980 | 0.9076 | 17,176,047 | 11 | 207 | .012793104 |
| A | 15,297,210 | 0.9491 | 16,117,596 | 10 | 116 | .004608043 |
| D3 | 51,641,431 | 0.9579 | 53,911,088 | 26 | 3,570 | .114518391 |
| Random Totals: | 112,477,181 | 125,381,366 | 67 | 4,742 | ||
| Catg J Exception Values: | 785,390 | 860,329 | ||||
| Catg D1 Exception Values: | 13,822,580 | 10,367,659 | ||||
| Total Test Values (4): | 127,085,151 | 136,609,354 |
Margin of Error
| Margin of Error Percent: | 7.5160241 |
|---|---|
| Margin of Error Value: | 10,267,592 |
Confidence Interval Values (5)
| State Lower Limit: | 126,341,762 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 127,085,151 | (Within Confidence Interval) |
| State Upper Limit: | 146,876,946 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 149,941,056 | (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