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2006 Confidence Interval Detail
254/Zavala
254-902/LaPryor ISD

Category Summary

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

Stratum
Variance
A 2,473,621 0.9219 2,683,177 15 195 .052341199
A 2,465,747 0.9276 2,658,201 15 102 .010364834
A 2,460,939 0.9871 2,493,100 16 71 .018535459
A 2,453,193 1.0235 2,396,867 15 40 .014403024
D3 9,461,776 1.0150 9,321,947 29 837 .050924837
G1 2,000,682 0.8262 2,421,547 15 32 .601936064
Random Totals: 21,315,958   21,974,839 105 1,277  
Catg J Exception Values: 5,212,412   6,025,702      
Catg D1 Exception Values: 11,197,075   11,538,247      
Total Test Values (4): 37,725,445   39,538,788      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,976,939

Confidence Interval Values (5)

State Lower Limit: 37,561,849 (State Test Value minus Margin of Error Percent)
Local Test Value: 37,725,445 (Within Confidence Interval)
State Upper Limit: 41,515,727 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 38,987,345 (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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