taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
194/Red River
194-905/Detroit ISD

Category Summary

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

Stratum
Variance
A 4,916,177 0.9308 5,281,668 15 174 .079467022
A 5,030,092 1.0471 4,803,832 15 94 .028813736
A 5,195,618 1.0450 4,971,883 14 69 .049405658
A 4,833,323 1.1426 4,230,109 12 33 .134601725
E 33,842,551 1.1145 30,365,681 15 570 .054292440
Random Totals: 53,817,761   49,653,173 71 940  
Catg D1 Exception Values: 12,256,924   11,411,625      
Total Test Values (4): 66,074,685   61,064,798      

Margin of Error

Margin of Error Percent: 6.2155548
Margin of Error Value: 3,795,516

Confidence Interval Values (5)

State Lower Limit: 57,269,282 (State Test Value minus Margin of Error Percent)
State Upper Limit: 64,860,314 (State Test Value plus Margin of Error Percent)
Local Test Value: 66,074,685 (Outside Confidence Interval)
Value Assigned (6): 62,150,184 (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