taxes Property Tax Assistance

2019 Confidence Interval Detail

Harris County
101-912/Houston ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 26,744,056,425 0.9700 27,571,192,191 465 170213 0.014581299
A 24,224,530,522 0.9773 24,787,199,961 493 63522 0.009336577
A 25,656,787,232 0.9701 26,447,569,562 461 34911 0.008637906
A 25,341,763,433 0.9733 26,036,949,998 415 13293 0.016449962
B 6,197,875,200 0.9612 6,448,059,925 42 2885 0.059257456
B 5,478,886,717 0.9333 5,870,445,427 10 175 0.009066246
B 5,830,443,037 0.9317 6,257,854,499 12 110 0.013487062
B 6,300,425,817 0.9581 6,575,958,477 10 75 0.007407307
C1 1,234,266,288 0.7796 1,583,204,577 60 21388 0.219112460
C1 1,143,723,741 0.8890 1,286,528,393 44 3713 0.051728886
C1 1,111,461,338 0.9315 1,193,195,210 17 1073 0.150210993
C1 1,022,047,825 1.0403 982,454,893 9 137 0.092701644
E 324,972,721 0.9418 345,054,917 15 501 0.901454090
F1 12,905,514,602 0.9484 13,607,670,394 47 10037 0.049105373
F1 12,915,002,857 0.9379 13,770,127,793 21 1555 0.013522337
F1 13,199,860,487 0.9173 14,389,905,687 16 300 0.004520255
F1 12,731,754,002 0.9108 13,978,649,541 14 49 0.013273349
L1 1,621,173 0.9360 1,732,101 10 10 0.013433431
L1 13,624,451 0.9790 13,917,353 10 10 0.000922295
L1 65,161,120 0.9859 66,090,476 10 10 0.003445497
L1 336,377,408 1.0424 322,696,559 9 9 0.017203586
Random Totals: 182,780,156,396 191,536,457,934 2,190 323,976
CATG D1 EXCEPTION VALUES: 471,588 450,932
CATG J EXCEPTION VALUES: 538,431,290 560,871,991
Total Test Values(2) 183,319,059,274 192,097,780,857

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,604,889,043

Confidence Interval Values(5)

Local Test Value: 183,319,059,274 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 182,492,891,814 (State Test Value minus Margin of Error Percent)
State Upper Limit: 201,702,669,900 (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