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084/Galveston
2017 Confidence Interval Detail
084/Galveston
084-906/Texas City ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 431,154,252 | 0.9344 | 461,423,643 | 59 | 6,677 | .014467025 |
| A | 491,268,191 | 0.9700 | 506,462,053 | 93 | 4,587 | .005856817 |
| A | 540,832,432 | 0.9643 | 560,854,954 | 103 | 3,239 | .009386317 |
| A | 587,931,333 | 0.9488 | 619,657,813 | 66 | 1,685 | .010758518 |
| F1 | 60,975,057 | 0.9040 | 67,450,284 | 10 | 533 | .044144256 |
| F1 | 62,006,290 | 0.9811 | 63,200,785 | 9 | 158 | .026928213 |
| F1 | 57,542,203 | 1.0441 | 55,111,774 | 8 | 54 | .018454357 |
| F1 | 63,612,495 | 0.9810 | 64,844,541 | 6 | 15 | .012316657 |
| L1 | 47,366,987 | 1.0658 | 44,442,660 | 11 | 468 | .012430427 |
| L1 | 37,261,173 | 0.9964 | 37,395,798 | 9 | 58 | .008004588 |
| L1 | 48,899,590 | 0.9772 | 50,040,514 | 7 | 20 | .007944936 |
| L1 | 50,229,510 | 1.0640 | 47,208,186 | 4 | 7 | .045156026 |
| Random Totals: | 2,479,079,513 | 2,578,093,005 | 385 | 17,501 | ||
| Catg J Exception Values: | 24,997,697 | 28,163,938 | ||||
| Catg D1 Exception Values: | 102,641 | 81,242 | ||||
| Total Test Values (4): | 2,504,179,851 | 2,606,338,185 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 130,316,909 |
Confidence Interval Values (5)
| State Lower Limit: | 2,476,021,276 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,504,179,851 | (Within Confidence Interval) |
| State Upper Limit: | 2,736,655,094 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,810,736,672 | (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