taxes Property Tax Assistance

2019 Confidence Interval Detail

Van Zandt County
234-905/Martins Mill ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 6,529,780 0.8829 7,395,832 10 117 0.029470751
A 7,185,200 0.9654 7,442,718 10 62 0.038031721
A 8,027,430 1.1716 6,851,681 10 44 0.014863283
A 10,101,990 1.0562 9,564,467 10 35 0.011834323
E 96,086,140 1.0570 90,904,579 21 826 0.053575860
Random Totals: 127,930,540 122,159,277 61 1,084
CATG D1 EXCEPTION VALUES: 4,772,180 4,768,286
Total Test Values(1) 132,702,720 126,927,563

Margin of Error

Margin of Error Percent: 7.2211811
Margin of Error Value: 9,165,669

Confidence Interval Values(5)

Local Test Value: 132,702,720 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 117,761,894 (State Test Value minus Margin of Error Percent)
State Upper Limit: 136,093,232 (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