taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
212/Smith
212-901/Arp ISD

Category Summary

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

Stratum
Variance
A 49,345,824 0.9160 53,870,987 12 644 .016133401
A 48,906,970 0.9257 52,832,419 11 253 .021636022
A 53,602,951 1.0095 53,098,515 9 174 .002083199
A 54,046,068 0.9851 54,863,535 9 90 .002514915
E 61,562,059 1.0165 60,562,773 12 911 .008193385
G1 9,257,326 1.0331 8,960,726 11 138 .149170410
G1 9,201,885 0.9842 9,349,609 9 62 .096448981
G1 9,028,034 1.0045 8,987,590 8 31 .026968636
G1 9,134,895 1.0522 8,681,710 5 10 .020983634
Random Totals: 304,086,012   311,207,864 86 2,313  
Catg J Exception Values: 5,788,788   5,818,953      
Catg D1 Exception Values: 5,558,540   3,986,148      
Total Test Values (4): 315,433,340   321,012,965      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,050,648

Confidence Interval Values (5)

State Lower Limit: 304,962,317 (State Test Value minus Margin of Error Percent)
Local Test Value: 315,433,340 (Within Confidence Interval)
State Upper Limit: 337,063,613 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 329,419,309 (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