taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 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 28,296,890 0.7490 37,779,559 9 331 .016605503
A 27,886,500 0.8154 34,199,779 9 168 .024040291
A 29,924,730 0.9228 32,428,186 10 131 .011572149
A 26,857,150 0.8609 31,196,597 10 84 .041354833
E 34,353,560 0.8101 42,406,567 15 438 .063454914
G1 2,428,221 0.9457 2,567,644 6 12 .017232011
Random Totals: 149,747,051   180,578,332 59 1,164  
Catg J Exception Values: 3,706,500   4,361,354      
Catg D1 Exception Values: 11,809,130   10,947,710      
Catg G1 Exception Values: 10,558,243   10,351,539      
Total Test Values (4): 175,820,924   206,238,935      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 10,311,947

Confidence Interval Values (5)

Local Test Value: 175,820,924 (Outside Confidence Interval)
State Lower Limit: 195,926,988 (State Test Value minus Margin of Error Percent)
State Upper Limit: 216,550,882 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 236,702,285 (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