2007 Confidence Interval Detail
113/Houston
113-902/Grapeland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 15,798,592 | 1.0366 | 15,240,779 | 10 | 404 | .007522679 |
| A | 15,785,356 | 0.9977 | 15,821,746 | 10 | 228 | .011582368 |
| A | 15,794,504 | 0.9685 | 16,308,213 | 10 | 158 | .004210201 |
| A | 15,763,770 | 0.9799 | 16,087,121 | 10 | 83 | .000980669 |
| D3 | 64,662,700 | 0.9875 | 65,481,215 | 27 | 4,097 | .015432160 |
| G1 | 10,959,938 | 1.0623 | 10,317,178 | 4 | 12 | .016860092 |
| G1 | 10,382,718 | 1.0293 | 10,087,164 | 3 | 6 | .000543452 |
| G1 | 10,647,622 | 1.0602 | 10,043,032 | 2 | 3 | .004691788 |
| Random Totals: | 159,795,200 | 159,386,448 | 76 | 4,991 | ||
| Catg J Exception Values: | 7,573,158 | 7,506,017 | ||||
| Catg D1 Exception Values: | 14,319,760 | 14,969,865 | ||||
| Catg G1 Exception Values: | 8,010,140 | 8,030,394 | ||||
| Total Test Values (4): | 189,698,258 | 189,892,724 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 9,494,636 |
Confidence Interval Values (5)
| State Lower Limit: | 180,398,088 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 189,698,258 | (Within Confidence Interval) |
| State Upper Limit: | 199,387,360 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 235,820,501 | (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