taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
154/Madison
154-903/North Zulch ISD

Category Summary

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

Stratum
Variance
A 4,039,530 0.9509 4,248,112 9 120 .059345542
A 4,002,230 0.9930 4,030,443 9 63 .020410830
A 3,913,270 1.0205 3,834,659 10 32 .013941584
A 3,918,780 1.0694 3,664,466 9 18 .002296807
D3 42,165,901 0.9766 43,176,225 15 1,527 .094095289
G1 65,855,909 0.9705 67,857,711 8 21 .037533025
G1 69,202,712 1.1691 59,193,150 4 8 .001698618
G1 70,839,998 1.0295 68,810,100 3 5 .012169211
Random Totals: 263,938,330   254,814,866 67 1,794  
Catg J Exception Values: 8,199,386   8,713,378      
Catg D1 Exception Values: 2,969,617   3,036,432      
Catg G1 Exception Values: 54,167,858   52,462,046      
Total Test Values (4): 329,275,191   319,026,722      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,951,336

Confidence Interval Values (5)

State Lower Limit: 303,075,386 (State Test Value minus Margin of Error Percent)
Local Test Value: 329,275,191 (Within Confidence Interval)
State Upper Limit: 334,978,058 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 352,963,603 (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