taxes Property Tax Assistance

2024 Confidence Interval Detail

Galveston County
084-903/High Island ISD

Category Summary

(1)
Category 		(1)
Stratum
Number 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2 81,267,574 0.9763 83,240,371 31 318 0.015930513
A 3 56,919,999 1.0308 55,219,246 15 115 0.034961790
A 4 63,382,210 1.0082 62,866,703 15 91 0.060155853
A 5 81,375,406 1.1368 71,582,869 15 71 0.026866477
C1 2 8,418,509 0.9472 8,887,784 14 330 0.064831575
C1 3 12,049,728 0.9126 13,203,734 15 282 0.332617599
C1 4 47,903,591 1.1828 40,500,161 18 720 0.147026429
C1 5 87,655,142 0.8509 103,014,622 13 515 0.053713931
Random Totals: 438,972,159 438,515,490 136 2,442
CATG D1 EXCEPTION VALUES: 131,874 181,268
Total Test Values 439,104,033 438,696,758

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 21,934,838

Confidence Interval Values(5)

Local Test Value: 439,104,033 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 416,761,920 (State Test Value minus Margin of Error Percent)
State Upper Limit: 460,631,596 (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