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2007 Confidence Interval Detail
003/Angelina
003-906/Zavalla ISD

Category Summary

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

Stratum
Variance
A 14,538,081 0.7423 19,585,183 13 610 .053876416
A 14,517,448 0.8711 16,665,650 18 312 .022720917
A 14,513,382 0.9401 15,438,126 14 209 .013364222
A 14,470,284 0.8864 16,324,779 15 112 .008227331
D3 2,280,930 0.9716 2,347,602 11 1,247 .498004462
Random Totals: 60,320,125   70,361,340 71 2,490  
Catg J Exception Values: 2,396,805   2,521,536      
Catg D1 Exception Values: 7,061,178   6,892,952      
Total Test Values (4): 69,778,108   79,775,828      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,988,791

Confidence Interval Values (5)

Local Test Value: 69,778,108 (Outside Confidence Interval)
State Lower Limit: 75,787,037 (State Test Value minus Margin of Error Percent)
State Upper Limit: 83,764,619 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 67,673,093 (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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