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2009 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 28,545,667 0.8876 32,160,508 14 725 .080946272
A 26,819,311 0.8514 31,500,248 15 418 .102352966
A 30,365,748 0.9127 33,270,240 13 323 .020530023
A 34,604,705 0.9208 37,581,131 14 209 .006987596
D3 24,194,068 0.9257 26,135,971 20 1,343 .027513701
F1 5,670,696 0.9501 5,968,525 6 53 .062898996
F1 9,732,651 0.9768 9,963,811 8 21 .004473339
L1 3,786,985 1.0320 3,669,559 6 64 .006585100
L1 6,009,301 0.9790 6,138,203 5 19 .001628701
L1 2,529,436 0.9889 2,557,828 3 4 .000527648
L1 3,210,318 0.9977 3,217,719 2 2 .001730398
Random Totals: 175,468,886   192,163,743 106 3,181  
Catg J Exception Values: 19,034,841   18,146,889      
Catg D1 Exception Values: 10,468,370   10,157,468      
Catg F1 Exception Values: 3,317,817   3,067,022      
Total Test Values (4): 208,289,914   223,535,122      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 11,176,756

Confidence Interval Values (5)

Local Test Value: 208,289,914 (Outside Confidence Interval)
State Lower Limit: 212,358,366 (State Test Value minus Margin of Error Percent)
State Upper Limit: 234,711,878 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 281,291,974 (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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