taxes Property Tax Assistance

2017 Confidence Interval Detail

101/Harris
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 964,703,943 0.9428 1,023,232,863 98 8,812 .010625091
A 1,700,367,810 0.9633 1,765,148,770 98 12,823 .009064593
A 1,724,999,930 0.9873 1,747,189,233 98 10,549 .008373482
A 1,898,647,599 1.0135 1,873,357,276 100 8,051 .014026768
B 197,607,050 0.7398 267,108,746 8 35 .015113964
B 261,099,025 0.8308 314,274,224 7 29 .008635107
B 327,959,917 0.9945 329,773,672 7 22 .003383294
B 429,864,518 1.0302 417,263,170 5 14 .002872901
C1 78,222,944 0.8718 89,725,790 15 669 .146659059
C1 75,551,860 0.8656 87,282,648 8 151 .131781589
C1 75,880,942 0.8185 92,707,321 9 63 .033776319
C1 119,852,466 1.1740 102,088,983 6 26 .027244135
F1 704,225,467 0.9010 781,604,292 14 671 .049339158
F1 722,127,947 0.9303 776,231,266 14 218 .006568297
F1 748,055,316 0.9063 825,394,810 12 93 .023038424
F1 714,556,333 0.9592 744,950,305 9 31 .063627238
L1 183,233,012 1.0225 179,200,990 11 1,230 .028503196
L1 197,316,957 0.9737 202,646,562 9 166 .013690143
L1 173,684,899 0.9517 182,499,631 8 42 .006639513
L1 250,766,614 0.9224 271,863,198 5 13 .032756786
Random Totals: 11,548,724,549   12,073,543,750 541 43,708  
Catg D1 Exception Values: 930,494   727,652      
Total Test Values (4): 11,549,655,043   12,074,271,402      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 603,713,570

Confidence Interval Values (5)

State Lower Limit: 11,470,557,832 (State Test Value minus Margin of Error Percent)
Local Test Value: 11,549,655,043 (Within Confidence Interval)
State Upper Limit: 12,677,984,972 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 12,455,825,591 (See ISD Summary Worksheet)

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
(6) Includes local value of unstudied property categories and sub-categories