taxes Property Tax Assistance

2021 Confidence Interval Detail

Jefferson County
123-907/Port Arthur ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 150,732,369 0.9957 151,383,317 22 3,651 0.091869859
A 310,415,606 1.0216 303,852,394 32 4,818 0.043636612
A 458,413,138 1.0128 452,619,607 49 4,746 0.085006007
A 567,906,214 1.0174 558,193,645 85 3,116 0.014553957
B 197,790,598 0.9001 219,742,915 15 40 0.089981642
F1 118,474,150 0.8619 137,456,956 15 414 0.194536221
F1 127,908,440 0.8699 147,038,096 13 93 0.027123304
F1 189,564,822 0.9016 210,253,795 16 53 0.032272658
F1 210,353,572 0.9360 224,736,722 7 15 0.043770867
L1 55,429,029 1.0085 54,961,853 10 467 0.022321659
L1 60,354,759 0.9819 61,467,317 10 77 0.004516513
L1 51,235,586 0.9157 55,952,371 7 18 0.021906969
L1 48,086,819 0.9347 51,446,260 5 6 0.006057530
Random Totals: 2,546,665,102 2,629,105,248 286 17,514
CATG D1 EXCEPTION VALUES: 443,876 329,063
CATG J EXCEPTION VALUES: 117,104,837 144,145,470
Total Test Values 2,664,213,815 2,773,579,781

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 138,678,989

Confidence Interval Values(5)

Local Test Value: 2,664,213,815 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 2,634,900,792 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,912,258,770 (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