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Galveston County
2023 Confidence Interval Detail
Galveston County
084-911/Friendswood ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 994,136,554 | 1.0099 | 984,391,082 | 92 | 3,011 | 0.013183816 |
| A | 987,268,293 | 1.0077 | 979,724,415 | 74 | 2,112 | 0.008131723 |
| A | 1,575,073,088 | 1.0054 | 1,566,613,376 | 93 | 2,530 | 0.012933115 |
| A | 1,706,975,229 | 0.9846 | 1,733,673,806 | 70 | 1,668 | 0.014047959 |
| F1 | 54,987,298 | 0.7090 | 77,556,133 | 10 | 95 | 0.208373204 |
| F1 | 87,201,425 | 0.9778 | 89,181,249 | 9 | 68 | 0.090522771 |
| F1 | 86,665,436 | 1.0604 | 81,729,004 | 8 | 36 | 0.123595972 |
| F1 | 108,323,304 | 0.9915 | 109,251,946 | 6 | 19 | 0.041511321 |
| Random Totals: | 5,600,630,627 | 5,622,121,011 | 362 | 9,539 | ||
| CATG D1 EXCEPTION VALUES: | 99,270 | 100,050 | ||||
| Total Test Values | 5,600,729,897 | 5,622,221,061 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 281,111,053 |
Confidence Interval Values(5)
| Local Test Value: | 5,600,729,897 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 5,341,110,008 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 5,903,332,114 | (State Test Value plus Margin of Error Percent) |
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