taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
123/Jefferson
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 205,973,024 0.9888 208,306,052 26 6,746 .054645027
A 214,330,897 1.0143 211,309,176 35 3,932 .031105180
A 211,111,144 1.0353 203,913,015 48 2,654 .021020435
A 213,782,558 0.9939 215,094,635 29 1,380 .006758990
F1 207,161,010 0.9785 211,712,836 16 468 .028332212
L1 52,506,090 1.0361 50,676,662 10 317 .002777715
L1 56,558,150 1.0408 54,341,036 9 68 .003196235
L1 54,991,900 0.9567 57,480,819 7 20 .009439272
L1 46,519,970 0.9840 47,276,392 4 6 .002946331
Random Totals: 1,262,934,743   1,260,110,623 184 15,591  
Catg D1 Exception Values: 357,690   234,445      
Catg F1 Exception Values: 113,128,100   104,351,346      
Total Test Values (4): 1,376,420,533   1,364,696,414      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 68,234,820

Confidence Interval Values (5)

State Lower Limit: 1,296,461,594 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,376,420,533 (Within Confidence Interval)
State Upper Limit: 1,432,931,234 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,011,664,866 (See ISD Summary Worksheet)

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, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories