taxes Property Tax Assistance

2021 Confidence Interval Detail

Harris County
101-919/Spring ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,261,370,412 0.9278 1,359,528,360 98 8,905 0.007667503
A 1,897,665,577 0.9599 1,976,940,907 96 11,358 0.008645031
A 2,266,589,173 0.9768 2,320,422,986 95 11,503 0.006934206
A 2,896,294,012 1.0098 2,868,185,791 95 10,870 0.011382555
B 460,895,217 0.8767 525,716,000 11 43 0.028882652
B 437,873,225 0.9200 475,949,158 8 25 0.007615041
B 459,285,959 0.8956 512,824,876 7 17 0.006170499
B 411,720,501 0.9753 422,147,545 5 9 0.008703539
C1 90,442,787 0.8956 100,985,693 12 499 0.153814089
C1 99,885,844 0.7019 142,307,799 10 142 0.206989082
C1 100,668,697 0.8015 125,600,371 9 63 0.088772556
C1 80,699,842 1.2722 63,433,298 7 17 0.058054555
F1 980,413,769 0.9002 1,089,106,609 20 752 0.128797977
F1 933,774,952 1.0652 876,619,369 15 220 0.038623520
F1 965,981,729 1.0024 963,668,924 14 91 0.026976780
F1 1,018,358,603 1.0245 994,005,469 9 20 0.005876064
L1 241,918,407 0.9557 253,132,162 13 1,173 0.003719971
L1 216,094,600 0.9822 220,010,792 10 124 0.008135400
L1 173,471,176 0.9861 175,916,414 8 31 0.000636392
L1 215,694,134 0.9457 228,078,814 5 8 0.004394266
Random Totals: 15,209,098,616 15,694,581,337 547 45,870
CATG D1 EXCEPTION VALUES: 4,924,446 4,929,042
Total Test Values 15,214,023,062 15,699,510,379

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 784,975,519

Confidence Interval Values(5)

Local Test Value: 15,214,023,062 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 14,914,534,860 (State Test Value minus Margin of Error Percent)
State Upper Limit: 16,484,485,898 (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