taxes Property Tax Assistance

2021 Confidence Interval Detail

Harris County
101-921/Tomball ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,876,684,409 0.9658 1,943,139,790 100 7,967 0.010589146
A 2,215,678,429 0.9940 2,229,052,745 94 6,954 0.002656544
A 2,457,841,501 0.9600 2,560,251,564 96 5,603 0.008411589
A 2,526,612,575 0.9505 2,658,193,135 97 2,845 0.055371763
B 435,777,414 0.9012 483,552,390 7 24 0.010118861
C1 82,116,029 0.8453 97,144,243 34 1,152 0.061191906
C1 100,080,694 0.9176 109,067,888 25 366 0.041037893
C1 93,052,926 1.0418 89,319,376 14 125 0.045793234
C1 91,151,246 1.0439 87,317,986 9 45 0.298770185
F1 561,228,770 1.0414 538,917,582 12 536 0.032572213
F1 583,495,024 1.0278 567,712,613 10 154 0.066216564
F1 565,653,318 0.9534 593,301,152 8 43 0.033984537
L1 96,717,752 0.9241 104,661,565 10 945 0.008274780
L1 96,485,471 0.9694 99,531,123 11 163 0.002438402
L1 97,794,611 0.9876 99,022,490 9 39 0.002726307
L1 73,889,772 1.0017 73,764,373 5 8 0.001184061
Random Totals: 11,954,259,941 12,333,950,015 541 26,969
CATG D1 EXCEPTION VALUES: 1,090,669 1,100,091
CATG F1 EXCEPTION VALUES: 453,872,542 499,852,106
Total Test Values 12,409,223,152 12,834,902,212

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 641,745,111

Confidence Interval Values(5)

Local Test Value: 12,409,223,152 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 12,193,157,101 (State Test Value minus Margin of Error Percent)
State Upper Limit: 13,476,647,323 (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