taxes Property Tax Assistance

2020 Confidence Interval Detail

Galveston County
084-901/Dickinson ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 641,581,243 0.9485 676,416,703 71 4,993 0.029330837
A 727,225,574 0.9815 740,932,831 73 3,892 0.004893772
A 965,110,675 1.0285 938,367,210 75 4,201 0.004370304
A 1,239,472,018 1.0240 1,210,421,893 71 3,577 0.008527888
F1 150,908,030 0.7123 211,860,213 15 411 0.077773300
F1 158,967,680 0.6254 254,185,609 17 117 0.040043137
F1 203,427,530 0.8218 247,538,975 15 54 0.035328270
F1 158,658,680 0.9906 160,166,419 6 9 0.012326123
L1 52,016,930 0.9533 54,565,121 11 506 0.027842377
L1 49,356,210 0.9213 53,572,354 12 102 0.013083043
L1 56,958,590 1.0164 56,039,542 8 23 0.013505478
L1 63,202,770 0.9003 70,201,899 5 7 0.035857877
Random Totals: 4,466,885,930 4,674,268,769 379 17,892
CATG D1 EXCEPTION VALUES: 645,163 621,303
CATG L1 EXCEPTION VALUES: 95,248,740 95,248,737
Total Test Values 4,562,779,833 4,770,138,809

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 238,506,940

Confidence Interval Values(5)

Local Test Value: 4,562,779,833 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 4,531,631,869 (State Test Value minus Margin of Error Percent)
State Upper Limit: 5,008,645,749 (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