2010 Confidence Interval Detail
091/Grayson
091-914/Sadler-Southmayd ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 35,037,810 | 0.9436 | 37,132,058 | 12 | 602 | .043508676 |
| A | 37,887,438 | 0.9177 | 41,285,211 | 12 | 294 | .021611427 |
| A | 34,787,199 | 0.9562 | 36,380,672 | 10 | 179 | .045866247 |
| A | 36,280,608 | 1.0651 | 34,063,100 | 11 | 92 | .008733272 |
| D3 | 64,510,461 | 1.1696 | 55,156,003 | 20 | 2,802 | .092958221 |
| G1 | 22,844,047 | 0.9282 | 24,611,126 | 8 | 43 | .035977858 |
| G1 | 22,510,388 | 0.9825 | 22,911,336 | 5 | 11 | .001950214 |
| G1 | 27,400,262 | 0.9992 | 27,422,200 | 2 | 3 | .000139429 |
| Random Totals: | 281,258,213 | 278,961,706 | 80 | 4,026 | ||
| Catg J Exception Values: | 8,982,636 | 8,676,706 | ||||
| Catg D1 Exception Values: | 7,256,342 | 5,365,077 | ||||
| Catg G1 Exception Values: | 16,117,461 | 15,984,189 | ||||
| Total Test Values (4): | 313,614,652 | 308,987,678 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 15,449,384 |
Confidence Interval Values (5)
| State Lower Limit: | 293,538,294 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 313,614,652 | (Within Confidence Interval) |
| State Upper Limit: | 324,437,062 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 339,352,593 | (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