taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 53,651,334 1.0056 53,352,560 8 661 .003767356
A 54,428,868 1.0184 53,445,471 9 271 .001489980
A 56,876,608 0.9850 57,742,749 10 178 .004890550
A 59,433,497 1.0023 59,297,114 8 97 .004161351
E 71,850,662 1.0231 70,228,386 10 966 .002794586
G1 7,519,999 0.9647 7,795,168 13 146 .103447438
G1 7,486,913 0.9979 7,502,669 9 67 .038397042
G1 7,684,546 1.0466 7,342,391 8 31 .086271347
G1 7,126,305 0.9568 7,448,061 5 9 .031767991
Random Totals: 326,058,732   324,154,569 80 2,426  
Catg J Exception Values: 6,585,063   6,683,787      
Catg D1 Exception Values: 5,548,283   4,384,788      
Total Test Values (4): 338,192,078   335,223,144      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,761,157

Confidence Interval Values (5)

State Lower Limit: 318,461,987 (State Test Value minus Margin of Error Percent)
Local Test Value: 338,192,078 (Within Confidence Interval)
State Upper Limit: 351,984,301 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 336,921,477 (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