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2009 Confidence Interval Detail
003/Angelina
003-907/Central ISD

Category Summary

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

Stratum
Variance
A 27,713,371 0.9478 29,239,682 15 636 .018291779
A 33,266,618 0.9076 36,653,391 18 424 .022910566
A 35,610,685 0.8411 42,338,230 15 329 .008648473
A 36,136,224 0.9536 37,894,530 17 233 .019750082
D3 51,840,536 1.0140 51,124,789 11 2,362 .043184278
G1 12,631,541 0.8814 14,331,224 10 21 .095395692
G1 11,435,322 1.0551 10,838,140 5 6 .004083580
G1 11,624,790 1.1545 10,069,112 3 4 .002579120
Random Totals: 220,259,087   232,489,098 94 4,015  
Catg J Exception Values: 12,499,070   11,192,006      
Catg D1 Exception Values: 7,199,876   6,963,255      
Catg G1 Exception Values: 11,519,080   10,781,244      
Total Test Values (4): 251,477,113   261,425,603      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,071,280

Confidence Interval Values (5)

State Lower Limit: 248,354,323 (State Test Value minus Margin of Error Percent)
Local Test Value: 251,477,113 (Within Confidence Interval)
State Upper Limit: 274,496,883 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 255,437,382 (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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