taxes Property Tax Assistance

2019 Confidence Interval Detail

Webb County
240-904/Webb CISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
G1 54,237,341 1.0261 52,857,754 15 429 0.008936594
G1 54,112,352 1.0206 53,020,137 15 165 0.002788376
G1 54,609,179 1.1247 48,554,440 15 85 0.031371188
G1 53,633,195 1.0356 51,789,489 15 37 0.004217643
Random Totals: 216,592,067 206,221,820 60 716
CATG D1 EXCEPTION VALUES: 26,564,812 28,552,235
CATG J EXCEPTION VALUES: 25,804,923 26,440,968
Total Test Values(2) 268,961,802 261,215,023

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,060,751

Confidence Interval Values(5)

Local Test Value: 268,961,802 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 248,154,272 (State Test Value minus Margin of Error Percent)
State Upper Limit: 274,275,774 (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