taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
072/Erath
072-904/Bluff Dale ISD

Category Summary

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

Stratum
Variance
A 7,061,330 1.0145 6,960,404 10 84 .033455426
A 7,283,960 0.9413 7,738,192 11 43 .012669736
A 8,407,820 0.9360 8,982,714 11 39 .010115310
A 8,373,260 0.9552 8,765,976 7 29 .005686970
C1 4,357,430 0.9968 4,371,419 13 384 .041841582
C1 4,186,150 0.9761 4,288,649 12 242 .098282735
C1 1,614,920 0.8750 1,845,623 9 92 .000000004
C1 3,009,980 0.9625 3,127,252 9 152 .043407969
E 31,091,290 0.9980 31,153,597 19 245 .005277470
Random Totals: 75,386,140   77,233,826 101 1,310  
Catg J Exception Values: 2,496,420   2,733,431      
Catg D1 Exception Values: 3,823,060   3,070,754      
Total Test Values (4): 81,705,620   83,038,011      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 4,151,901

Confidence Interval Values (5)

State Lower Limit: 78,886,110 (State Test Value minus Margin of Error Percent)
Local Test Value: 81,705,620 (Within Confidence Interval)
State Upper Limit: 87,189,912 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 115,466,907 (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