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084/Galveston
2017 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 | 1,371,401,896 | 0.9687 | 1,415,713,736 | 220 | 9,999 | .014128051 |
| A | 1,585,895,328 | 0.9761 | 1,624,726,286 | 198 | 6,458 | .008900151 |
| A | 1,583,999,795 | 0.9656 | 1,640,430,608 | 152 | 4,048 | .012439684 |
| A | 1,520,513,485 | 0.9851 | 1,543,511,811 | 82 | 1,924 | .008390752 |
| B | 81,358,426 | 1.0729 | 75,830,391 | 11 | 578 | .048703219 |
| B | 87,694,961 | 0.9240 | 94,907,966 | 10 | 282 | .090667887 |
| B | 85,586,339 | 0.8020 | 106,716,133 | 8 | 24 | .060247627 |
| B | 80,814,850 | 0.7588 | 106,503,492 | 6 | 11 | .029568412 |
| C1 | 97,267,790 | 0.9339 | 104,152,254 | 56 | 4,029 | .043357697 |
| C1 | 100,386,150 | 0.9363 | 107,215,796 | 40 | 1,730 | .035127376 |
| C1 | 108,130,728 | 0.9474 | 114,134,186 | 34 | 839 | .011920364 |
| C1 | 116,475,091 | 1.0131 | 114,968,997 | 17 | 328 | .013527568 |
| F1 | 150,823,948 | 0.8772 | 171,937,925 | 10 | 671 | .066582616 |
| F1 | 156,079,649 | 1.0072 | 154,963,909 | 10 | 210 | .004475284 |
| F1 | 157,687,240 | 0.9984 | 157,939,944 | 9 | 57 | .030777552 |
| F1 | 169,675,760 | 0.7560 | 224,438,836 | 6 | 20 | .200072286 |
| Random Totals: | 7,453,791,436 | 7,758,092,270 | 869 | 31,208 | ||
| Catg D1 Exception Values: | 358,824 | 291,534 | ||||
| Total Test Values (4): | 7,454,150,260 | 7,758,383,804 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 387,919,190 |
Confidence Interval Values (5)
| State Lower Limit: | 7,370,464,614 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,454,150,260 | (Within Confidence Interval) |
| State Upper Limit: | 8,146,302,994 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,351,042,252 | (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, D2, E, 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