taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
084/Galveston
084-909/Santa Fe ISD

Category Summary

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

Stratum
Variance
A 185,011,753 0.9229 200,467,822 42 2,149 .022074173
A 235,079,836 0.9744 241,255,989 59 1,743 .010118929
A 308,505,300 0.9784 315,316,128 60 1,735 .011379756
A 480,254,870 0.9519 504,522,397 64 1,686 .018656895
E 90,333,052 0.9101 99,256,183 10 914 .031839150
Random Totals: 1,299,184,811   1,360,818,519 235 8,227  
Catg D1 Exception Values: 1,840,250   1,902,478      
Total Test Values (4): 1,301,025,061   1,362,720,997      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 68,136,049

Confidence Interval Values (5)

State Lower Limit: 1,294,584,948 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,301,025,061 (Within Confidence Interval)
State Upper Limit: 1,430,857,046 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,163,650,670 (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