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2012 Confidence Interval Detail
125/Jim Wells
125-906/La Gloria ISD

Category Summary

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

Stratum
Variance
D3 11,515,418 0.9862 11,676,554 15 757 .065810582
G1 1,997,968 1.0554 1,893,091 7 21 .000248760
Random Totals: 13,513,386   13,569,645 22 778  
Catg J Exception Values: 1,939,430   2,081,665      
Catg D1 Exception Values: 3,159,106   3,282,599      
Catg G1 Exception Values: 1,928,080   1,857,416      
Total Test Values (4): 20,540,002   20,791,325      

Margin of Error

Margin of Error Percent: 7.6791546
Margin of Error Value: 1,596,598

Confidence Interval Values (5)

State Lower Limit: 19,194,727 (State Test Value minus Margin of Error Percent)
Local Test Value: 20,540,002 (Within Confidence Interval)
State Upper Limit: 22,387,923 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 54,251,366 (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

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