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2007 Confidence Interval Detail
050/Coryell
050-902/Gatesville ISD

Category Summary

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

Stratum
Variance
A 87,989,676 0.9204 95,599,387 25 1,851 .022112030
A 88,000,446 0.9487 92,758,982 33 1,144 .017550581
A 87,912,737 0.9645 91,148,509 19 814 .016569652
A 87,945,313 0.9913 88,717,152 25 485 .016162596
D3 51,604,334 0.9982 51,697,389 18 4,506 .041451088
F1 18,606,334 0.9639 19,303,179 9 171 .002532550
F1 18,833,672 1.0028 18,781,085 6 59 .001134304
F1 19,743,945 1.0099 19,550,396 5 18 .000397395
F1 16,643,001 0.9598 17,340,072 2 3 .000434340
L1 10,806,450 0.9815 11,010,138 7 197 .003714450
L1 10,889,096 0.9591 11,353,452 6 41 .008518092
L1 13,841,607 1.0041 13,785,088 4 10 .000677046
Random Totals: 512,816,611   531,044,829 159 9,299  
Catg D1 Exception Values: 20,375,007   18,023,755      
Catg L1 Exception Values: 6,627,630   6,561,801      
Total Test Values (4): 539,819,248   555,630,385      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 27,781,519

Confidence Interval Values (5)

State Lower Limit: 527,848,866 (State Test Value minus Margin of Error Percent)
Local Test Value: 539,819,248 (Within Confidence Interval)
State Upper Limit: 583,411,904 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 515,905,016 (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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