taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
226/Tom Green
226-901/Christoval ISD

Category Summary

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

Stratum
Variance
A 32,179,550 0.7061 45,573,644 11 328 .131277148
A 33,991,650 0.8660 39,251,328 14 179 .037313998
A 32,519,340 0.9117 35,668,904 8 124 .014298847
A 37,800,670 0.8776 43,072,778 8 105 .011501121
E 48,166,490 0.8909 54,064,979 7 423 .039115358
G1 1,426,499 1.0101 1,412,235 6 14 .013040103
G1 1,274,811 0.9730 1,310,186 3 4 .187327147
Random Totals: 187,359,010   220,354,054 57 1,177  
Catg J Exception Values: 3,888,860   3,708,939      
Catg D1 Exception Values: 12,073,990   9,618,149      
Catg G1 Exception Values: 4,814,732   4,260,465      
Total Test Values (4): 208,136,592   237,941,607      

Margin of Error

Margin of Error Percent: 5.8638189
Margin of Error Value: 13,952,465

Confidence Interval Values (5)

Local Test Value: 208,136,592 (Outside Confidence Interval)
State Lower Limit: 223,989,142 (State Test Value minus Margin of Error Percent)
State Upper Limit: 251,894,072 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 250,745,984 (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