taxes Property Tax Assistance

2019 Confidence Interval Detail

Tom Green County
226-907/Grape Creek ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 65,432,520 1.0086 64,874,598 12 955 0.033854799
A 63,525,750 0.9607 66,124,441 10 466 0.010307439
A 46,236,010 0.9934 46,543,195 24 230 0.001147195
A 50,041,500 1.0089 49,600,059 31 170 0.003553556
E 34,969,880 0.9282 37,674,941 15 413 0.025446328
Random Totals: 260,205,660 264,817,234 92 2,234
CATG D1 EXCEPTION VALUES: 7,410,940 5,256,429
Total Test Values(1) 267,616,600 270,073,663

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,503,683

Confidence Interval Values(5)

Local Test Value: 267,616,600 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 256,569,980 (State Test Value minus Margin of Error Percent)
State Upper Limit: 283,577,346 (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