taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 15,609,731 0.8773 17,792,923 8 201 .067183315
A 16,246,590 0.9563 16,989,010 10 129 .051280524
A 14,631,470 1.0327 14,168,171 7 84 .012582686
A 22,418,040 1.0084 22,231,297 8 80 .002915654
E 395,149,357 0.9756 405,032,141 42 2,542 .010444778
F1 9,777,499 1.2331 7,929,202 10 75 .019189506
F1 9,962,200 1.1172 8,917,114 9 40 .063611340
F1 11,126,460 1.1656 9,545,693 7 23 .050423278
F1 12,573,320 1.1197 11,229,186 4 10 .029779434
Random Totals: 507,494,667   513,834,737 105 3,184  
Catg J Exception Values: 19,352,070   26,237,780      
Catg D1 Exception Values: 23,885,962   23,186,753      
Total Test Values (4): 550,732,699   563,259,270      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 28,162,963

Confidence Interval Values (5)

State Lower Limit: 535,096,307 (State Test Value minus Margin of Error Percent)
Local Test Value: 550,732,699 (Within Confidence Interval)
State Upper Limit: 591,422,233 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 584,031,289 (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