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2009 Confidence Interval Detail
108/Hidalgo
108-903/Edcouch-Elsa ISD

Category Summary

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

Stratum
Variance
A 35,883,838 0.9133 39,290,308 15 1,341 .037092577
A 47,751,321 0.9686 49,299,320 19 1,164 .013208057
A 52,772,460 0.9996 52,793,577 20 826 .020050335
A 59,731,373 0.9924 60,188,808 18 511 .016013356
C 2,088,196 0.9280 2,250,211 7 225 .053313766
C 3,957,451 1.0124 3,908,980 14 269 .000200589
C 4,625,102 1.0337 4,474,318 10 226 .001156035
C 9,718,532 1.0317 9,419,921 12 221 .001562669
D3 15,068,515 1.0156 14,837,057 17 893 .009943635
F1 7,737,953 0.9896 7,819,273 11 109 .013046852
F1 9,897,310 0.7929 12,482,419 12 52 .057657830
F1 12,001,830 0.8633 13,902,270 9 31 .088692513
Random Totals: 261,233,881   270,666,462 164 5,868  
Catg D1 Exception Values: 4,771,849   5,057,620      
Catg F1 Exception Values: 7,618,654   8,949,963      
Total Test Values (4): 273,624,384   284,674,045      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 14,233,702

Confidence Interval Values (5)

State Lower Limit: 270,440,343 (State Test Value minus Margin of Error Percent)
Local Test Value: 273,624,384 (Within Confidence Interval)
State Upper Limit: 298,907,747 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 250,678,764 (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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