taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
016/Blanco
016-901/Johnson City ISD

Category Summary

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

Stratum
Variance
A 15,258,532 1.0073 15,147,952 10 208 .037177606
A 14,620,740 0.9480 15,422,722 9 122 .045318634
A 15,878,920 1.0751 14,769,714 9 93 .016946255
A 14,338,750 0.9749 14,707,919 9 54 .017181164
E 331,293,952 0.9387 352,928,467 17 2,397 .024512716
F1 9,633,979 0.9785 9,845,661 11 74 .030250191
F1 9,404,340 0.9187 10,236,573 8 37 .066699590
F1 8,731,560 0.9801 8,908,846 6 16 .032459261
F1 8,829,790 0.8744 10,098,113 4 6 .008096209
Random Totals: 427,990,563   452,065,967 83 3,007  
Catg J Exception Values: 25,985,670   27,224,107      
Catg D1 Exception Values: 23,834,493   21,425,469      
Total Test Values (4): 477,810,726   500,715,543      

Margin of Error

Margin of Error Percent: 5.3645607
Margin of Error Value: 26,861,189

Confidence Interval Values (5)

State Lower Limit: 473,854,354 (State Test Value minus Margin of Error Percent)
Local Test Value: 477,810,726 (Within Confidence Interval)
State Upper Limit: 527,576,732 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 511,501,284 (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