2007 Confidence Interval Detail
156/Martin
156-905/Grady ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| D3 | 10,888,450 | 1.0077 | 10,805,250 | 11 | 1,353 | .059973435 |
| G1 | 87,489,120 | 1.1679 | 74,911,482 | 7 | 166 | .084375616 |
| G1 | 87,011,612 | 1.0344 | 84,117,954 | 6 | 49 | .012117628 |
| G1 | 87,503,970 | 1.0278 | 85,137,157 | 5 | 20 | .008992652 |
| G1 | 83,824,202 | 0.9608 | 87,244,174 | 4 | 7 | .001209241 |
| Random Totals: | 356,717,354 | 342,216,017 | 33 | 1,595 | ||
| Catg D1 Exception Values: | 12,461,750 | 18,343,219 | ||||
| Total Test Values (4): | 369,179,104 | 360,559,236 |
Margin of Error
| Margin of Error Percent: | 5.3425288 |
|---|---|
| Margin of Error Value: | 19,262,981 |
Confidence Interval Values (5)
| State Lower Limit: | 341,296,255 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 369,179,104 | (Within Confidence Interval) |
| State Upper Limit: | 379,822,217 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 405,059,247 | (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