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2012 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 32,483,238 1.0798 30,082,643 10 725 .027641919
A 33,531,042 0.9980 33,598,238 10 462 .012906359
A 31,581,280 1.0632 29,703,988 10 295 .003394563
A 34,776,180 0.9981 34,842,381 11 190 .010662865
D3 24,000,955 1.0098 23,768,028 16 1,255 .006001402
F1 5,341,880 0.9355 5,710,187 9 50 .043667025
F1 4,821,310 0.9202 5,239,415 6 16 .009522863
F1 5,177,290 0.6966 7,432,228 4 7 .037836592
F1 5,854,090 1.4761 3,965,917 2 4 .157894500
L1 4,355,330 0.9631 4,522,199 10 71 .008277140
L1 3,381,200 1.0185 3,319,784 6 13 .024581347
L1 3,937,800 0.9756 4,036,285 4 6 .004004947
Random Totals: 189,241,595   186,221,293 98 3,094  
Catg J Exception Values: 11,444,430   11,371,216      
Catg D1 Exception Values: 8,778,295   9,197,519      
Total Test Values (4): 209,464,320   206,790,028      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,339,501

Confidence Interval Values (5)

State Lower Limit: 196,450,527 (State Test Value minus Margin of Error Percent)
Local Test Value: 209,464,320 (Within Confidence Interval)
State Upper Limit: 217,129,529 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 262,492,347 (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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