2007 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 | 31,247,075 | 0.8140 | 38,387,070 | 15 | 548 | .116898801 |
| A | 31,377,920 | 0.9604 | 32,671,720 | 11 | 255 | .006631274 |
| A | 31,157,794 | 0.9619 | 32,391,926 | 19 | 164 | .042110899 |
| A | 31,195,991 | 1.0003 | 31,186,635 | 6 | 77 | .000948291 |
| D3 | 55,999,123 | 0.8239 | 67,968,349 | 29 | 2,686 | .408759942 |
| G1 | 18,798,133 | 0.8711 | 21,579,765 | 6 | 39 | .080344949 |
| G1 | 21,406,474 | 0.9874 | 21,679,637 | 4 | 9 | .002898451 |
| Random Totals: | 221,182,510 | 245,865,102 | 90 | 3,778 | ||
| Catg D1 Exception Values: | 8,475,068 | 5,932,799 | ||||
| Catg G1 Exception Values: | 58,211,043 | 55,193,459 | ||||
| Total Test Values (4): | 287,868,621 | 306,991,360 |
Margin of Error
| Margin of Error Percent: | 5.9210937 |
|---|---|
| Margin of Error Value: | 18,177,246 |
Confidence Interval Values (5)
| Local Test Value: | 287,868,621 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 288,814,114 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 325,168,606 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 317,729,821 | (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