taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
226/Tom Green
226-905/Water Valley ISD

Category Summary

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

Stratum
Variance
A 9,161,970 0.9281 9,871,749 11 221 .009626181
A 9,545,780 0.8379 11,392,505 10 122 .042965806
A 9,084,610 0.9754 9,313,728 10 75 .013602562
A 9,336,550 0.9517 9,810,392 9 46 .006124777
E 12,149,020 0.8938 13,592,549 19 226 .039498805
G1 8,253,861 0.9963 8,284,514 8 44 .028770966
G1 8,536,213 0.9741 8,763,179 5 11 .008251769
G1 8,645,604 1.0401 8,312,282 3 4 .052487909
Random Totals: 74,713,608   79,340,898 75 749  
Catg J Exception Values: 3,820,340   4,296,598      
Catg D1 Exception Values: 10,340,960   9,680,002      
Catg G1 Exception Values: 7,440,324   7,080,101      
Total Test Values (4): 96,315,232   100,397,599      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,019,880

Confidence Interval Values (5)

State Lower Limit: 95,377,719 (State Test Value minus Margin of Error Percent)
Local Test Value: 96,315,232 (Within Confidence Interval)
State Upper Limit: 105,417,479 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 107,746,165 (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