taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
156/Martin
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 94,895,893 1.0252 92,563,298 15 84 .027610151
G1 95,617,872 1.0430 91,675,812 13 39 .028014703
G1 93,020,488 0.9565 97,250,902 10 22 .038066989
G1 93,724,125 1.0030 93,443,794 7 11 .003731687
Random Totals: 377,258,378   374,933,806 45 156  
Catg D1 Exception Values: 2,829,220   1,611,282      
Total Test Values (4): 380,087,598   376,545,088      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 18,827,254

Confidence Interval Values (5)

State Lower Limit: 357,717,834 (State Test Value minus Margin of Error Percent)
Local Test Value: 380,087,598 (Within Confidence Interval)
State Upper Limit: 395,372,342 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 431,717,669 (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