taxes Property Tax Assistance

2022 Confidence Interval Detail

Rockwall County
199-901/Rockwall ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 3,155,478,493 0.9572 3,296,571,765 150 9,506 0.012655543
A 3,158,228,413 0.9574 3,298,755,393 150 7,289 0.009363165
A 3,159,781,117 0.9658 3,271,672,310 150 5,439 0.010827266
A 3,156,269,844 0.9700 3,253,886,437 150 3,123 0.010995472
C1 94,482,799 0.9412 100,385,464 16 974 0.250524550
C1 116,222,244 0.9935 116,982,631 35 467 0.076024360
C1 76,878,620 0.7322 104,996,750 10 120 0.127781453
C1 143,619,921 0.9322 154,065,566 9 66 0.098236534
E 409,030,309 0.9128 448,105,071 27 809 0.079659072
F1 463,987,653 1.1600 399,989,356 10 470 0.067298219
F1 539,423,929 1.0532 512,176,157 10 166 0.054627784
F1 495,537,745 1.1818 419,307,620 9 56 0.029218321
F1 420,942,814 0.8708 483,397,811 6 14 0.033007162
L1 113,410,370 1.0834 104,680,054 12 589 0.012723483
L1 115,776,810 0.9989 115,904,305 10 91 0.011056793
L1 153,466,430 0.9613 159,644,679 6 18 0.001608883
Random Totals: 15,772,537,511 16,240,521,369 760 29,197
CATG D1 EXCEPTION VALUES: 1,351,190 1,122,059
CATG L1 EXCEPTION VALUES: 108,085,290 105,055,492
Total Test Values 15,881,973,991 16,346,698,920

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 817,334,946

Confidence Interval Values(5)

Local Test Value: 15,881,973,991 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 15,529,363,974 (State Test Value minus Margin of Error Percent)
State Upper Limit: 17,164,033,866 (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