taxes Property Tax Assistance

2023 Confidence Interval Detail

Montgomery County
170-904/Willis ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,143,417,010 0.9593 1,191,928,500 99 5,742 0.033192167
A 1,445,514,400 0.9871 1,464,405,227 100 4,851 0.014362129
A 1,565,931,420 0.9916 1,579,196,672 99 3,583 0.014814592
A 1,676,630,250 0.9895 1,694,421,678 83 1,868 0.032807881
C1 79,315,520 0.6022 131,709,598 19 2,539 0.202381936
C1 133,643,360 0.6294 212,334,541 20 1,446 0.029177578
C1 94,919,080 0.6572 144,429,519 10 558 0.027030363
C1 81,271,216 1.1534 70,462,299 10 63 0.211166699
E 350,143,531 0.6986 501,207,459 14 887 0.062457805
F1 192,543,877 1.0169 189,343,964 11 244 0.005180731
F1 160,370,230 0.9819 163,326,439 12 80 0.011752806
F1 154,032,850 0.9705 158,714,941 9 36 0.005419816
F1 156,825,970 0.9378 167,227,522 6 14 0.010501670
Random Totals: 7,234,558,714 7,668,708,359 492 21,911
CATG D1 EXCEPTION VALUES: 16,362,600 4,762,049
Total Test Values 7,250,921,314 7,673,470,408

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 383,673,520

Confidence Interval Values(5)

Local Test Value: 7,250,921,314 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 7,289,796,888 (State Test Value minus Margin of Error Percent)
State Upper Limit: 8,057,143,928 (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