taxes Property Tax Assistance

2017 Confidence Interval Detail

022/Brewster
022-901/Alpine ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 77,856,581 0.8752 88,958,616 15 983 .051890994
A 87,302,137 0.9311 93,762,364 15 598 .013574395
A 89,966,192 0.9838 91,447,644 15 441 .008092828
A 102,674,883 1.0143 101,227,332 16 341 .069627606
E 49,677,263 0.8523 58,286,123 24 6,270 .042613974
F1 17,096,715 0.9764 17,509,950 15 133 .059048258
F1 14,357,981 0.9619 14,926,688 13 45 .032033470
F1 15,518,631 0.9582 16,195,607 16 19 .034040005
L1 8,408,112 0.8119 10,356,093 9 109 .155010969
L1 6,689,083 0.9439 7,086,644 6 15 .060459729
L1 7,023,865 1.0447 6,723,332 3 6 .002738991
Random Totals: 476,571,443   506,480,393 147 8,960  
Catg J Exception Values: 34,138,530   33,191,216      
Catg D1 Exception Values: 17,902,086   14,298,734      
Catg F1 Exception Values: 26,411,241   29,286,018      
Catg L1 Exception Values: 9,592,082   8,601,253      
Total Test Values (4): 564,615,382   591,857,614      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 29,592,880

Confidence Interval Values (5)

State Lower Limit: 562,264,734 (State Test Value minus Margin of Error Percent)
Local Test Value: 564,615,382 (Within Confidence Interval)
State Upper Limit: 621,450,494 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 580,669,521 (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