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2010 Confidence Interval Detail
003/Angelina
003-905/Diboll ISD

Category Summary

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

Stratum
Variance
A 26,051,648 1.0105 25,780,948 16 633 .011327506
A 34,756,931 0.9635 36,073,618 15 518 .016682305
A 34,677,487 1.0122 34,259,521 15 342 .007416793
A 32,599,889 1.0150 32,118,117 15 185 .003324564
D3 25,695,749 0.9600 26,766,405 17 1,350 .047293077
F1 6,173,839 0.8877 6,954,871 9 52 .068555977
F1 4,895,475 1.1109 4,406,765 6 14 .027229371
F1 7,159,524 0.9772 7,326,570 4 7 .057066766
L1 4,602,049 0.9591 4,798,299 9 82 .041563237
L1 3,859,048 0.9668 3,991,568 7 14 .018430249
L1 3,951,934 1.1477 3,443,351 4 8 .024637623
Random Totals: 184,423,573   185,920,033 117 3,205  
Catg J Exception Values: 17,333,987   17,287,079      
Catg D1 Exception Values: 9,215,514   9,120,433      
Catg F1 Exception Values: 3,992,291   3,383,602      
Catg L1 Exception Values: 2,015,496   1,982,527      
Total Test Values (4): 216,980,861   217,693,674      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 10,884,684

Confidence Interval Values (5)

State Lower Limit: 206,808,990 (State Test Value minus Margin of Error Percent)
Local Test Value: 216,980,861 (Within Confidence Interval)
State Upper Limit: 228,578,358 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 264,877,573 (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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