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2007 Confidence Interval Detail
108/Hidalgo
108-902/Donna ISD

Category Summary

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

Stratum
Variance
A 145,192,508 0.9286 156,356,351 19 4,600 .051421374
A 145,048,332 1.0204 142,148,503 15 2,716 .050284347
A 145,189,890 0.9698 149,711,167 21 1,814 .051936222
A 145,032,703 0.9945 145,834,794 34 1,072 .015018808
C 16,429,242 0.9302 17,662,053 7 1,387 .088771188
C 16,497,307 0.9518 17,332,745 7 917 .001158136
C 16,395,489 0.9185 17,850,287 7 731 .013888108
C 16,388,441 1.0475 15,645,290 7 273 .033844241
D3 40,453,565 0.8802 45,959,515 21 2,140 .083539384
F1 21,279,699 0.9908 21,477,290 8 224 .042118373
F1 21,164,276 0.8321 25,434,775 6 84 .034282464
F1 21,643,462 0.7223 29,964,643 6 33 .102894648
F1 20,467,187 0.8173 25,042,441 4 10 .011170709
Random Totals: 771,182,101   810,419,854 162 16,001  
Catg D1 Exception Values: 13,596,724   13,761,998      
Total Test Values (4): 784,778,825   824,181,852      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 41,209,093

Confidence Interval Values (5)

State Lower Limit: 782,972,759 (State Test Value minus Margin of Error Percent)
Local Test Value: 784,778,825 (Within Confidence Interval)
State Upper Limit: 865,390,945 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 790,299,727 (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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