taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 74,957,720 0.8003 93,662,027 22 1,061 .036359060
A 74,055,258 0.8213 90,168,340 24 572 .052930019
A 78,514,065 0.8659 90,673,363 23 416 .090112588
A 85,434,726 0.9419 90,704,667 12 300 .008938602
E 49,150,571 0.9535 51,547,531 23 6,265 .046353763
F1 15,491,025 0.8352 18,547,683 16 132 .066019316
F1 15,493,195 0.9953 15,566,357 10 50 .000669241
F1 14,871,576 0.9651 15,409,363 7 18 .001489497
F1 15,379,032 0.9836 15,635,453 4 6 .000856721
Random Totals: 423,347,168   481,914,784 141 8,820  
Catg J Exception Values: 28,419,731   28,303,744      
Catg D1 Exception Values: 17,698,468   14,126,874      
Total Test Values (4): 469,465,367   524,345,402      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,217,270

Confidence Interval Values (5)

Local Test Value: 469,465,367 (Outside Confidence Interval)
State Lower Limit: 498,128,132 (State Test Value minus Margin of Error Percent)
State Upper Limit: 550,562,672 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 491,745,568 (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, D3, 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