taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
057/Dallas
057-919/Sunnyvale ISD

Category Summary

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

Stratum
Variance
A 104,624,400 0.9808 106,672,512 21 482 .002704473
A 144,311,180 0.9589 150,496,590 25 514 .005682366
A 136,027,210 0.9740 139,658,326 16 392 .006442423
A 142,429,480 0.9314 152,919,777 17 273 .014245454
C1 14,434,610 0.9342 15,451,306 10 220 .052057216
C1 10,289,730 0.9274 11,095,245 9 83 .011196669
C1 12,623,230 1.0733 11,761,139 9 38 .116817654
C1 8,721,660 1.0052 8,676,542 3 5 .000083897
F1 25,582,950 0.8743 29,261,066 9 38 .007517817
F1 44,094,550 0.8931 49,372,467 8 12 .019496287
L1 19,005,640 1.0276 18,495,173 8 33 .003625229
L1 11,391,930 1.0125 11,251,289 2 3 .000000118
Random Totals: 673,536,570   705,111,432 137 2,093  
Catg D1 Exception Values: 467,012   489,561      
Catg F1 Exception Values: 78,909,170   84,771,000      
Catg L1 Exception Values: 68,019,150   67,069,337      
Total Test Values (4): 820,931,902   857,441,330      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 42,872,067

Confidence Interval Values (5)

State Lower Limit: 814,569,263 (State Test Value minus Margin of Error Percent)
Local Test Value: 820,931,902 (Within Confidence Interval)
State Upper Limit: 900,313,397 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 870,722,055 (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