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2006 Confidence Interval Detail
214/Starr
214-901/Rio Grande City ISD

Category Summary

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

Stratum
Variance
A 65,135,635 0.7304 89,178,033 17 3,342 .192650983
A 65,041,897 0.7484 86,907,933 17 1,960 .184794170
A 65,141,979 0.8326 78,239,225 15 1,259 .070214635
A 65,015,558 0.9536 68,179,067 16 620 .025436963
C 13,332,246 0.7010 19,018,896 24 2,827 .378434658
C 13,186,631 0.6267 21,041,377 16 1,852 .246116763
C 13,260,054 0.7910 16,763,659 31 883 .052950451
C 13,258,620 1.0440 12,699,828 10 185 .033986718
D3 18,065,290 1.1566 15,619,307 40 6,710 1.643816884
F1 21,021,211 0.9325 22,542,854 9 278 .056034839
F1 21,342,705 0.8329 25,624,571 8 73 .040253642
F1 21,512,760 0.7984 26,944,840 9 26 .032819235
F1 20,141,266 0.9302 21,652,619 4 6 .024129142
G1 127,808,739 0.9852 129,728,724 15 162 .041009570
G1 127,840,191 1.0325 123,816,166 15 67 .015051826
G1 128,614,535 1.0134 126,913,889 13 35 .014809450
G1 125,313,356 1.0923 114,724,303 8 12 .003357545
L1 11,827,998 0.8790 13,456,198 7 1,181 .127623763
L1 12,615,507 1.0100 12,490,601 7 188 .005675091
L1 22,852,739 0.9363 24,407,497 6 28 .025114190
Random Totals: 972,328,917   1,049,949,587 287 21,694  
Catg D1 Exception Values: 32,543,810   36,491,795      
Total Test Values (4): 1,004,872,727   1,086,441,382      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 54,322,069

Confidence Interval Values (5)

Local Test Value: 1,004,872,727 (Outside Confidence Interval)
State Lower Limit: 1,032,119,313 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,140,763,451 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,020,134,830 (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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