taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 10,569,790 0.9835 10,747,117 7 225 .007151978
A 10,717,870 0.8885 12,062,881 11 122 .008714789
A 10,159,090 0.9512 10,680,288 7 76 .006577453
A 12,420,060 0.9576 12,969,987 7 54 .006984274
E 13,447,250 0.9994 13,455,323 13 222 .007555823
G1 4,641,224 1.0703 4,336,377 8 48 .012368377
G1 4,534,882 1.1334 4,001,131 6 13 .065103078
G1 5,764,666 0.9816 5,872,724 4 6 .000341979
Random Totals: 72,254,832   74,125,828 63 766  
Catg J Exception Values: 3,664,760   3,454,161      
Catg D1 Exception Values: 10,746,820   8,086,615      
Catg G1 Exception Values: 3,404,784   3,501,547      
Total Test Values (4): 90,071,196   89,168,151      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,458,407

Confidence Interval Values (5)

State Lower Limit: 84,709,744 (State Test Value minus Margin of Error Percent)
Local Test Value: 90,071,196 (Within Confidence Interval)
State Upper Limit: 93,626,558 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 105,894,602 (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