taxes Property Tax Assistance

2020 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 227,767,530 0.8253 275,981,498 20 6,713 0.096013531
A 235,241,308 0.8743 269,062,459 23 3,943 0.086972267
A 257,989,970 0.8800 293,170,420 29 2,900 0.038279380
A 277,414,299 0.9375 295,908,586 34 1,621 0.008447048
B 141,147,930 0.8116 173,913,172 9 37 0.149517527
F1 116,600,089 0.7104 164,133,008 10 404 0.108905022
F1 104,369,206 0.9134 114,264,513 9 79 0.069199919
F1 120,822,718 0.8449 143,002,388 10 33 0.044581079
F1 111,934,808 0.8431 132,765,755 5 10 0.026190347
L1 53,665,765 0.9699 55,331,235 11 459 0.013269210
L1 41,917,941 0.9894 42,367,032 10 67 0.008600368
L1 56,872,420 1.0131 56,137,025 8 32 0.019464896
L1 75,486,073 0.9400 80,304,333 5 11 0.001477590
Random Totals: 1,821,230,057 2,096,341,424 183 16,309
CATG D1 EXCEPTION VALUES: 468,323 326,903
CATG J EXCEPTION VALUES: 11,276,765 10,802,852
Total Test Values 1,832,975,145 2,107,471,179

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 105,373,559

Confidence Interval Values(5)

Local Test Value: 1,832,975,145 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 2,002,097,620 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,212,844,738 (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