taxes Property Tax Assistance

2018 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 200,542,870 0.9599 208,920,585 18 644 0.029293786
A 200,128,250 0.9658 207,215,003 12 505 0.005557226
A 200,394,270 0.9943 201,543,065 19 431 0.002375898
A 200,060,210 1.0104 198,001,000 15 307 0.008630413
F1 33,062,510 0.8241 40,119,536 11 44 0.045838802
F1 33,921,210 0.9235 36,731,142 6 15 0.030043755
L1 19,382,000 1.0133 19,127,603 10 37 0.000628227
L1 8,925,740 0.9791 9,116,270 4 4 0.000726154
Random Totals: 896,417,060 920,774,204 95 1,987
CATG D1 EXCEPTION VALUES: 434,270 385,150
CATG F1 EXCEPTION VALUES: 97,479,160 104,195,604
CATG L1 EXCEPTION VALUES: 86,816,800 86,386,638
Total Test Values(3) 1,081,147,290 1,111,741,596

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 55,587,080

Confidence Interval Values(5)

Local Test Value: 1,081,147,290 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,056,154,516 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,167,328,676 (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