2007 Confidence Interval Detail
084/Galveston
084-908/Hitchcock ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 80,411,657 | 1.0586 | 75,960,379 | 10 | 1,332 | .014947822 |
| A | 80,518,714 | 1.0238 | 78,646,917 | 11 | 654 | .018496083 |
| A | 80,449,690 | 0.9713 | 82,826,820 | 9 | 247 | .002434077 |
| A | 80,204,059 | 1.0358 | 77,431,994 | 8 | 136 | .008858145 |
| C | 17,518,963 | 0.9683 | 18,092,495 | 9 | 1,113 | .022960970 |
| C | 17,804,292 | 0.8418 | 21,150,264 | 7 | 156 | .014792834 |
| C | 17,188,616 | 0.9102 | 18,884,439 | 8 | 100 | .002000777 |
| C | 17,438,116 | 1.0320 | 16,897,399 | 6 | 61 | .024607984 |
| F1 | 10,499,379 | 0.9347 | 11,232,886 | 8 | 83 | .014562481 |
| F1 | 10,628,530 | 0.9384 | 11,326,225 | 5 | 25 | .023302729 |
| F1 | 12,249,457 | 0.9397 | 13,035,497 | 5 | 7 | .065469864 |
| L1 | 5,161,545 | 1.1088 | 4,655,073 | 6 | 83 | .049201368 |
| L1 | 4,946,092 | 1.0233 | 4,833,472 | 5 | 16 | .001717262 |
| L1 | 6,658,251 | 0.9593 | 6,940,739 | 3 | 5 | .016664495 |
| Random Totals: | 441,677,361 | 441,914,599 | 100 | 4,018 | ||
| Catg D1 Exception Values: | 1,661,111 | 1,960,729 | ||||
| Catg F1 Exception Values: | 7,794,280 | 8,093,398 | ||||
| Catg L1 Exception Values: | 3,448,590 | 3,501,973 | ||||
| Total Test Values (4): | 454,581,342 | 455,470,699 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 22,773,535 |
Confidence Interval Values (5)
| State Lower Limit: | 432,697,164 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 454,581,342 | (Within Confidence Interval) |
| State Upper Limit: | 478,244,234 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 487,548,512 | (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