taxes Property Tax Assistance

2016 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 422,959,880 0.9154 462,049,246 14 1,370 .007344572
A 213,229,940 1.0035 212,486,238 6 397 .039887598
F1 28,413,710 0.8909 31,893,265 8 41 .012876157
F1 32,512,570 0.9319 34,888,475 5 11 .006131124
L1 25,657,820 1.0175 25,216,531 8 34 .024220597
Random Totals: 722,773,920   766,533,755 41 1,853  
Catg D1 Exception Values: 484,447   529,182      
Catg F1 Exception Values: 85,895,090   92,579,671      
Catg L1 Exception Values: 101,246,120   97,597,504      
Total Test Values (4): 910,399,577   957,240,112      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 47,862,005

Confidence Interval Values (5)

State Lower Limit: 909,378,107 (State Test Value minus Margin of Error Percent)
Local Test Value: 910,399,577 (Within Confidence Interval)
State Upper Limit: 1,005,102,117 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 997,429,700 (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