2010 Confidence Interval Detail
199/Rockwall
199-902/Royse City ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 161,106,423 | 1.0217 | 157,684,666 | 52 | 1,456 | .004162120 |
| A | 156,081,760 | 1.0021 | 155,754,675 | 47 | 1,127 | .003566314 |
| A | 153,720,079 | 0.9970 | 154,182,627 | 45 | 908 | .008520000 |
| A | 145,246,726 | 1.0166 | 142,875,001 | 27 | 574 | .008789911 |
| D3 | 69,956,726 | 1.0553 | 66,290,842 | 17 | 1,099 | .014303240 |
| F1 | 14,144,640 | 0.9875 | 14,323,686 | 9 | 77 | .007357541 |
| F1 | 14,298,953 | 0.9995 | 14,306,106 | 7 | 28 | .008635241 |
| F1 | 13,508,966 | 0.8639 | 15,637,187 | 6 | 14 | .019648289 |
| F1 | 13,810,620 | 0.9331 | 14,800,793 | 3 | 5 | .006836471 |
| Random Totals: | 741,874,893 | 735,855,583 | 213 | 5,288 | ||
| Catg J Exception Values: | 33,502,385 | 32,839,540 | ||||
| Catg D1 Exception Values: | 1,997,017 | 1,921,989 | ||||
| Total Test Values (4): | 777,374,295 | 770,617,112 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 38,530,856 |
Confidence Interval Values (5)
| State Lower Limit: | 732,086,256 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 777,374,295 | (Within Confidence Interval) |
| State Upper Limit: | 809,147,968 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 801,673,324 | (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