taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
226/Tom Green
200-902/Miles ISD

Category Summary

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

Stratum
Variance
A 2,315,260 0.9960 2,324,558 9 32 .033680236
A 2,460,460 0.9403 2,616,676 8 21 .011109395
A 1,946,450 0.9977 1,950,937 7 13 .012091910
A 2,210,210 0.9302 2,376,059 6 10 .002556479
E 13,813,450 0.9288 14,872,362 19 174 .016117631
Random Totals: 22,745,830   24,140,592 49 250  
Catg J Exception Values: 361,200   425,016      
Catg D1 Exception Values: 6,354,040   7,204,426      
Total Test Values (4): 29,461,070   31,770,034      

Margin of Error

Margin of Error Percent: 5.0000009
Margin of Error Value: 1,588,502

Confidence Interval Values (5)

Local Test Value: 29,461,070 (Outside Confidence Interval)
State Lower Limit: 30,181,532 (State Test Value minus Margin of Error Percent)
State Upper Limit: 33,358,536 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 28,474,980 (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