taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
224/Throckmorton
224-902/Woodson ISD

Category Summary

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

Stratum
Variance
A 750,560 0.8569 875,902 14 51 .021929423
A 825,350 1.0390 794,370 13 31 .010996915
A 644,760 1.0291 626,528 10 18 .033160680
A 1,421,320 0.9898 1,435,967 11 25 .019162020
E 4,305,580 0.9195 4,682,523 15 160 .047964165
G1 2,994,210 0.9882 3,029,964 15 49 .030807466
G1 2,958,730 1.0376 2,851,513 12 16 .032648649
Random Totals: 13,900,510   14,296,767 90 350  
Catg J Exception Values: 412,620   391,693      
Catg D1 Exception Values: 4,402,570   4,629,178      
Catg G1 Exception Values: 5,610,190   5,603,733      
Total Test Values (4): 24,325,890   24,921,371      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,246,068

Confidence Interval Values (5)

State Lower Limit: 23,675,303 (State Test Value minus Margin of Error Percent)
Local Test Value: 24,325,890 (Within Confidence Interval)
State Upper Limit: 26,167,439 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 30,792,218 (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