taxes Property Tax Assistance

2021 Confidence Interval Detail

Montgomery County
170-903/Montgomery ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,495,717,520 0.9254 1,616,292,976 100 7,568 0.014822648
A 1,520,258,552 0.9329 1,629,605,051 100 4,542 0.009589307
A 1,660,809,920 0.9457 1,756,169,948 100 3,246 0.018388529
A 1,735,866,463 0.9435 1,839,816,071 100 1,906 0.025125073
C1 50,514,390 0.7217 69,993,612 73 2,445 0.229178347
C1 52,096,640 0.7721 67,473,954 71 871 0.156808919
C1 57,082,400 0.8376 68,149,952 60 446 0.300783118
C1 74,925,990 0.8475 88,408,248 29 138 0.375678526
E 456,719,912 0.8396 543,973,216 35 1,386 0.106205623
F1 109,586,315 0.9004 121,708,480 11 308 0.008273875
F1 135,360,070 0.9576 141,353,457 9 127 0.068126813
F1 105,080,450 0.9732 107,974,157 8 39 0.100242866
F1 156,875,370 1.0315 152,084,702 6 17 0.004615735
Random Totals: 7,610,893,992 8,203,003,824 702 23,039
CATG D1 EXCEPTION VALUES: 9,771,002 8,992,976
Total Test Values 7,620,664,994 8,211,996,800

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 410,599,840

Confidence Interval Values(5)

Local Test Value: 7,620,664,994 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 7,801,396,960 (State Test Value minus Margin of Error Percent)
State Upper Limit: 8,622,596,640 (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