taxes Property Tax Assistance

2020 Confidence Interval Detail

Dallas County
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 207,746,783 0.9653 215,214,734 17 653 0.003704538
A 219,224,980 0.9837 222,857,558 18 544 0.002402150
A 248,279,800 0.9810 253,088,481 25 523 0.006051498
A 258,685,559 0.9937 260,325,610 15 400 0.002772003
C1 18,487,660 0.7827 23,620,365 10 212 0.073402092
C1 16,086,190 0.7310 22,005,732 10 120 0.173232064
C1 18,199,320 1.2745 14,279,576 9 43 0.144267746
C1 17,858,610 1.0494 17,017,925 6 12 0.067802977
F1 46,934,030 0.7869 59,644,211 11 49 0.020046335
F1 49,253,820 0.8300 59,341,952 7 14 0.081282349
L1 99,759,300 0.9981 99,949,203 10 51 0.000704686
Random Totals: 1,200,516,052 1,247,345,347 138 2,621
CATG D1 EXCEPTION VALUES: 429,199 379,154
CATG F1 EXCEPTION VALUES: 86,741,410 102,224,025
CATG L1 EXCEPTION VALUES: 105,699,990 107,088,048
Total Test Values 1,393,386,651 1,457,036,574

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 72,851,829

Confidence Interval Values(5)

Local Test Value: 1,393,386,651 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,384,184,745 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,529,888,403 (State Test Value plus Margin of Error Percent)

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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values