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2010 Confidence Interval Detail
254/Zavala
254-902/La Pryor ISD

Category Summary

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

Stratum
Variance
A 2,454,648 0.9784 2,508,839 10 197 .138643204
A 2,438,391 0.8742 2,789,283 9 105 .037971580
A 2,412,334 0.9302 2,593,350 9 69 .055375084
A 2,529,315 1.1305 2,237,342 8 39 .036540715
D3 13,401,320 1.0324 12,980,744 20 862 .010677320
Random Totals: 23,236,008   23,109,558 56 1,272  
Catg J Exception Values: 5,164,039   5,541,236      
Catg D1 Exception Values: 11,887,319   16,347,733      
Total Test Values (4): 40,287,366   44,998,527      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,249,926

Confidence Interval Values (5)

Local Test Value: 40,287,366 (Outside Confidence Interval)
State Lower Limit: 42,748,601 (State Test Value minus Margin of Error Percent)
State Upper Limit: 47,248,453 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 43,704,223 (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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