2006 Confidence Interval Detail
177/Nolan
177-903/Blackwell ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,443,569 | 0.8022 | 3,046,085 | 7 | 168 | .089118375 |
| A | 2,446,043 | 0.9820 | 2,490,879 | 6 | 82 | .051927193 |
| A | 2,471,660 | 1.0294 | 2,401,069 | 6 | 50 | .007466300 |
| A | 2,393,702 | 1.1515 | 2,078,769 | 8 | 28 | .012331167 |
| D3 | 16,953,545 | 0.9457 | 17,926,980 | 10 | 1,591 | .111656562 |
| G1 | 18,898,440 | 1.0176 | 18,571,580 | 6 | 58 | .020071476 |
| G1 | 19,055,320 | 1.0015 | 19,026,780 | 5 | 18 | .014831718 |
| G1 | 18,311,357 | 0.9933 | 18,434,871 | 4 | 8 | .008507249 |
| G1 | 17,545,760 | 1.0844 | 16,180,155 | 3 | 4 | .013719798 |
| Random Totals: | 100,519,396 | 100,157,168 | 55 | 2,007 | ||
| Catg J Exception Values: | 11,139,922 | 10,396,218 | ||||
| Catg D1 Exception Values: | 11,352,739 | 12,231,900 | ||||
| Total Test Values (4): | 123,012,057 | 122,785,286 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 6,139,264 |
Confidence Interval Values (5)
| State Lower Limit: | 116,646,022 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 123,012,057 | (Within Confidence Interval) |
| State Upper Limit: | 128,924,550 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 237,531,620 | (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