taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
014/Bell
014-901/Academy ISD

Category Summary

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

Stratum
Variance
A 51,785,594 0.9640 53,719,496 28 573 .014509744
A 55,362,256 0.9865 56,119,874 25 415 .010638164
A 70,085,714 0.9729 72,037,942 33 397 .011686715
A 55,754,258 0.9439 59,067,971 7 131 .008885405
E 62,249,368 0.9486 65,622,357 9 543 .009970817
Random Totals: 295,237,190   306,567,640 102 2,059  
Catg J Exception Values: 5,611,401   6,104,670      
Catg D1 Exception Values: 7,173,724   11,075,363      
Total Test Values (4): 308,022,315   323,747,673      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,187,383

Confidence Interval Values (5)

State Lower Limit: 307,560,290 (State Test Value minus Margin of Error Percent)
Local Test Value: 308,022,315 (Within Confidence Interval)
State Upper Limit: 339,935,056 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 312,766,646 (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