taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
234/Van Zandt
234-905/Martins Mill ISD

Category Summary

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

Stratum
Variance
A 5,769,500 1.0226 5,641,991 13 116 .015783870
A 5,052,410 0.9852 5,128,309 8 53 .017407482
A 3,873,050 1.0586 3,658,653 8 28 .005713970
A 7,250,010 1.0628 6,821,613 10 31 .005921704
E 70,325,870 1.0198 68,960,453 15 819 .023579163
Random Totals: 92,270,840   90,211,019 54 1,047  
Catg D1 Exception Values: 4,145,990   3,306,845      
Total Test Values (4): 96,416,830   93,517,864      

Margin of Error

Margin of Error Percent: 5.8652494
Margin of Error Value: 5,485,056

Confidence Interval Values (5)

State Lower Limit: 88,032,808 (State Test Value minus Margin of Error Percent)
Local Test Value: 96,416,830 (Within Confidence Interval)
State Upper Limit: 99,002,920 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 94,089,758 (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