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2007 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 51,469,847 1.0109 50,914,875 20 1,690 .076032259
A 51,423,928 0.9359 54,945,964 8 810 .022453798
A 51,480,635 0.9480 54,304,467 10 526 .033536706
A 51,370,031 0.9930 51,732,156 8 300 .046986742
C 5,614,331 0.9845 5,702,723 8 521 .011988433
C 4,244,282 0.9853 4,307,604 7 210 .005069172
C 5,003,863 0.9403 5,321,560 10 177 .017001819
C 4,837,502 1.0319 4,687,956 7 63 .007847070
D3 38,659,736 0.9068 42,633,145 16 1,802 .136737910
F1 7,615,141 0.9751 7,809,600 7 101 .006925654
F1 7,561,310 0.9845 7,680,356 6 40 .025099812
F1 8,049,552 0.8533 9,433,437 5 22 .095684822
F1 7,026,664 0.9652 7,280,008 6 9 .002415531
Random Totals: 294,356,822   306,753,851 118 6,271  
Catg D1 Exception Values: 3,883,475   3,715,702      
Total Test Values (4): 298,240,297   310,469,553      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 15,523,478

Confidence Interval Values (5)

State Lower Limit: 294,946,075 (State Test Value minus Margin of Error Percent)
Local Test Value: 298,240,297 (Within Confidence Interval)
State Upper Limit: 325,993,031 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 312,294,033 (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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