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2009 Confidence Interval Detail
182/Palo Pinto
182-902/Graford ISD

Category Summary

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

Stratum
Variance
A 71,290,740 0.9866 72,259,011 14 675 .002088483
A 91,407,370 0.8274 110,475,429 16 415 .107336173
A 120,588,480 0.9458 127,498,922 28 272 .026133227
A 97,109,070 0.9945 97,646,124 16 71 .009047215
C 23,371,120 1.0148 23,030,272 40 398 .007228901
C 22,674,470 0.9529 23,795,225 16 186 .078928632
C 12,834,440 1.1258 11,400,284 6 61 .046099768
C 11,888,290 0.9401 12,645,772 5 32 .003260083
D3 20,205,460 1.0013 20,179,227 9 1,322 .003714304
G1 11,731,160 0.9411 12,465,370 6 161 .019767867
G1 11,609,660 1.1029 10,526,485 7 54 .016603170
G1 11,976,080 1.0351 11,569,974 5 25 .002998624
G1 11,072,490 1.0688 10,359,740 2 5 .023275671
Random Totals: 517,758,830   543,851,835 170 3,677  
Catg D1 Exception Values: 7,732,600   8,307,800      
Catg G1 Exception Values: 14,266,080   14,591,097      
Total Test Values (4): 539,757,510   566,750,732      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 28,337,537

Confidence Interval Values (5)

State Lower Limit: 538,413,195 (State Test Value minus Margin of Error Percent)
Local Test Value: 539,757,510 (Within Confidence Interval)
State Upper Limit: 595,088,269 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 624,664,156 (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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