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2009 Confidence Interval Detail
031/Cameron
031-905/La Feria ISD

Category Summary

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

Stratum
Variance
A 53,863,114 0.9876 54,539,403 19 1,692 .047957629
A 60,127,534 1.0103 59,514,534 20 919 .042046721
A 51,574,022 0.9473 54,443,177 16 507 .024844748
A 47,660,828 0.9514 50,095,468 15 268 .021717420
C 5,870,662 0.9677 6,066,614 8 612 .016245596
C 5,270,440 0.9738 5,412,241 7 284 .002083256
C 5,595,945 1.0219 5,476,020 7 192 .011255967
C 6,066,772 1.0162 5,970,057 7 98 .002184743
D3 41,372,574 0.9612 43,042,628 20 1,835 .031509323
F1 7,713,392 0.8773 8,792,194 9 104 .020357021
F1 8,859,981 0.8678 10,209,704 9 45 .014652559
F1 8,506,614 0.9138 9,309,054 7 21 .018921635
F1 9,649,940 1.0336 9,336,242 7 11 .007069301
L1 4,962,382 0.8269 6,001,188 7 104 .334193082
L1 4,190,561 1.0744 3,900,373 6 25 .002138645
L1 6,345,061 1.0766 5,893,610 4 15 .001962663
L1 5,709,122 0.9844 5,799,596 2 4 .001452924
Random Totals: 333,338,944   343,802,103 170 6,736  
Catg D1 Exception Values: 4,275,386   4,087,275      
Total Test Values (4): 337,614,330   347,889,378      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,394,469

Confidence Interval Values (5)

State Lower Limit: 330,494,909 (State Test Value minus Margin of Error Percent)
Local Test Value: 337,614,330 (Within Confidence Interval)
State Upper Limit: 365,283,847 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 342,389,292 (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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