taxes Property Tax Assistance

2017 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 17,132,048 0.8597 19,927,938 10 199 .055110206
A 17,367,880 0.9549 18,188,166 9 127 .042171799
A 17,789,110 1.1045 16,106,030 9 92 .084170846
A 26,926,720 0.9801 27,473,441 9 87 .003054257
E 454,449,876 0.9788 464,292,885 49 2,670 .010020608
F1 10,974,569 1.0014 10,959,226 9 75 .000639395
F1 12,594,000 0.9233 13,640,204 8 44 .040788601
F1 15,268,840 1.0062 15,174,757 8 26 .010618129
F1 11,362,680 0.9426 12,054,615 4 8 .008586153
L1 9,229,400 1.0028 9,203,630 8 61 .007285187
L1 17,133,780 0.9790 17,501,307 6 15 .000086626
Random Totals: 610,228,903   624,522,199 129 3,404  
Catg J Exception Values: 26,305,500   19,524,085      
Catg D1 Exception Values: 24,041,708   26,401,793      
Catg L1 Exception Values: 14,712,550   14,541,551      
Total Test Values (4): 675,288,661   684,989,628      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 34,249,481

Confidence Interval Values (5)

State Lower Limit: 650,740,147 (State Test Value minus Margin of Error Percent)
Local Test Value: 675,288,661 (Within Confidence Interval)
State Upper Limit: 719,239,109 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 670,664,216 (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