taxes Property Tax Assistance

2019 Confidence Interval Detail

Harris County
237-904/Waller ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 219,590,537 0.9284 236,525,783 43 1786 0.043626378
A 249,461,927 1.0014 249,113,169 74 1233 0.005461959
A 239,413,069 0.9743 245,728,286 42 830 0.015094788
A 220,560,339 0.9612 229,463,524 16 448 0.009539130
C1 38,010,366 0.7882 48,224,265 10 1016 0.032793625
C1 27,516,792 0.8806 31,247,777 10 367 0.024439044
C1 35,193,985 0.9859 35,697,317 9 126 0.009753056
C1 31,059,575 1.0445 29,736,309 6 17 0.010166777
F1 49,934,932 0.8721 57,258,264 14 90 0.009123074
F1 51,469,455 0.9179 56,073,053 13 32 0.033808551
F1 58,207,727 0.9339 62,327,580 8 18 0.032950168
F1 39,320,714 1.0367 37,929,030 2 5 0.028956462
L1 1,761,504 0.8156 2,159,833 11 11 0.163135385
L1 6,351,920 0.9465 6,710,910 8 8 0.011244642
L1 5,720,989 0.9283 6,162,853 4 4 0.004499889
L1 9,122,709 0.8156 11,184,973 2 2 0.081239816
L1 33,813,005 1.0325 32,747,135 1 1 0.000000000
Random Totals: 1,316,509,545 1,378,290,061 273 5,994
CATG D1 EXCEPTION VALUES: 5,153,965 4,672,521
Total Test Values(1) 1,321,663,510 1,382,962,582

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 69,148,129

Confidence Interval Values(5)

Local Test Value: 1,321,663,510 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,313,814,453 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,452,110,711 (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