taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
114/Howard
058-909/Sands ISD

Category Summary

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

Stratum
Variance
G1 76,861,409 1.0904 70,489,187 9 94 .080967156
G1 76,261,922 0.9924 76,845,951 8 39 .018395991
G1 77,256,910 1.0135 76,227,834 7 23 .037198639
G1 74,000,702 0.9862 75,036,202 5 10 .108636949
Random Totals: 304,380,943   298,599,174 29 166  
Catg D1 Exception Values: 11,026,691   13,964,165      
Total Test Values (4): 315,407,634   312,563,339      

Margin of Error

Margin of Error Percent: 7.6069404
Margin of Error Value: 23,776,507

Confidence Interval Values (5)

State Lower Limit: 288,786,832 (State Test Value minus Margin of Error Percent)
Local Test Value: 315,407,634 (Within Confidence Interval)
State Upper Limit: 336,339,846 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 384,758,952 (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