2011 Confidence Interval Detail
084/Galveston
084-902/Galveston ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 831,810,303 | 0.9480 | 877,437,028 | 41 | 9,650 | .013252599 |
| A | 883,821,762 | 0.9110 | 970,166,588 | 28 | 5,556 | .025819489 |
| A | 859,756,038 | 0.9861 | 871,875,102 | 29 | 3,260 | .052099150 |
| A | 933,293,268 | 0.9977 | 935,444,791 | 25 | 1,808 | .008125717 |
| C | 78,717,058 | 0.5904 | 133,328,350 | 32 | 4,463 | .381420647 |
| C | 78,034,822 | 0.9215 | 84,682,390 | 13 | 1,385 | .319023284 |
| C | 78,644,859 | 0.9887 | 79,543,703 | 15 | 677 | .047628066 |
| C | 81,062,050 | 0.9667 | 83,854,402 | 10 | 229 | .025432440 |
| F1 | 117,828,035 | 1.0540 | 111,791,305 | 10 | 653 | .007417140 |
| F1 | 118,635,669 | 1.0476 | 113,245,198 | 13 | 209 | .007136630 |
| F1 | 110,796,710 | 0.9611 | 115,281,147 | 9 | 63 | .009258527 |
| F1 | 127,588,350 | 0.9411 | 135,573,637 | 7 | 23 | .009654051 |
| Random Totals: | 4,299,988,924 | 4,512,223,641 | 232 | 27,976 | ||
| Catg D1 Exception Values: | 411,680 | 527,392 | ||||
| Total Test Values (4): | 4,300,400,604 | 4,512,751,033 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 225,637,552 |
Confidence Interval Values (5)
| State Lower Limit: | 4,287,113,481 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 4,300,400,604 | (Within Confidence Interval) |
| State Upper Limit: | 4,738,388,585 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,849,553,699 | (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