2008 Confidence Interval Detail
084/Galveston
084-903/High Island ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 21,113,604 | 0.7232 | 29,194,696 | 17 | 496 | .076714558 |
| A | 20,796,200 | 1.0115 | 20,559,763 | 17 | 218 | .049666767 |
| A | 23,272,650 | 1.3062 | 17,817,065 | 16 | 131 | .083785666 |
| A | 22,675,970 | 1.3956 | 16,248,187 | 16 | 63 | .029685165 |
| C | 2,107,700 | 0.8650 | 2,436,647 | 7 | 774 | .002941129 |
| C | 2,317,699 | 0.9328 | 2,484,669 | 7 | 276 | .037750539 |
| C | 2,650,110 | 1.0571 | 2,506,962 | 7 | 91 | .008387431 |
| C | 2,208,874 | 0.9543 | 2,314,654 | 6 | 28 | .024853248 |
| G1 | 12,692,970 | 0.9933 | 12,778,587 | 15 | 28 | .052987060 |
| Random Totals: | 109,835,777 | 106,341,230 | 108 | 2,105 | ||
| Catg D1 Exception Values: | 330,508 | 252,838 | ||||
| Catg G1 Exception Values: | 6,956,620 | 6,660,653 | ||||
| Total Test Values (4): | 117,122,905 | 113,254,721 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 5,662,736 |
Confidence Interval Values (5)
| State Lower Limit: | 107,591,985 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 117,122,905 | (Within Confidence Interval) |
| State Upper Limit: | 118,917,457 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 130,907,732 | (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