2011 Confidence Interval Detail
072/Erath
072-910/Morgan Mill ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,680,730 | 0.9713 | 1,730,392 | 10 | 39 | .008907970 |
| A | 1,827,610 | 0.9903 | 1,845,511 | 11 | 27 | .003437911 |
| A | 1,835,650 | 1.0285 | 1,784,784 | 10 | 18 | .006134705 |
| A | 1,404,060 | 1.0074 | 1,393,746 | 5 | 8 | .003397519 |
| D3 | 47,816,550 | 0.9720 | 49,193,981 | 21 | 1,045 | .040107822 |
| G1 | 1,874,310 | 0.8534 | 2,196,285 | 8 | 34 | .126962632 |
| G1 | 1,939,800 | 1.0457 | 1,855,025 | 6 | 15 | .046402031 |
| G1 | 2,004,760 | 1.0075 | 1,989,836 | 5 | 9 | .051593509 |
| G1 | 1,617,810 | 1.0539 | 1,535,070 | 3 | 5 | .005754437 |
| Random Totals: | 62,001,280 | 63,524,630 | 79 | 1,200 | ||
| Catg J Exception Values: | 46,818 | 45,759 | ||||
| Catg D1 Exception Values: | 4,366,830 | 4,164,655 | ||||
| Total Test Values (4): | 66,414,928 | 67,735,044 |
Margin of Error
| Margin of Error Percent: | 6.3197892 |
|---|---|
| Margin of Error Value: | 4,280,712 |
Confidence Interval Values (5)
| State Lower Limit: | 63,454,332 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 66,414,928 | (Within Confidence Interval) |
| State Upper Limit: | 72,015,756 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 70,407,678 | (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