taxes Property Tax Assistance

2021 Confidence Interval Detail

Erath County
072-903/Stephenville ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 182,906,630 0.9376 195,079,597 32 1,862 0.022835375
A 201,202,940 0.9803 205,246,292 44 1,284 0.007054691
A 245,473,090 0.9810 250,227,411 61 1,173 0.004310533
A 266,677,580 0.9740 273,796,283 30 783 0.005661695
B 51,410,880 0.9033 56,914,513 10 202 0.030635736
B 51,899,840 0.6693 77,543,463 8 24 0.041283639
B 37,669,960 0.8674 43,428,591 4 5 0.021372911
B 37,090,520 0.7907 46,906,691 2 3 0.009147593
E 393,099,520 0.9192 427,653,960 44 1,937 0.012410505
F1 80,287,650 1.0376 77,378,229 10 345 0.006798486
F1 84,185,390 1.0239 82,220,324 11 145 0.002824140
F1 83,761,200 0.9884 84,744,233 9 65 0.002285220
F1 86,491,620 0.9404 91,973,224 8 22 0.017927740
L1 33,191,170 1.0598 31,318,334 10 407 0.016548668
L1 30,686,750 1.1132 27,566,250 11 84 0.009387262
L1 28,777,010 1.0345 27,817,313 10 29 0.000741107
L1 34,733,150 0.9722 35,726,342 5 13 0.002981341
Random Totals: 1,929,544,900 2,035,541,050 309 8,383
CATG D1 EXCEPTION VALUES: 18,076,860 12,962,338
Total Test Values 1,947,621,760 2,048,503,388

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 102,425,169

Confidence Interval Values(5)

Local Test Value: 1,947,621,760 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,946,078,219 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,150,928,557 (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