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2008 Confidence Interval Detail
231/Upton
231-901/McCamey ISD

Category Summary

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

Stratum
Variance
A 5,007,400 0.6676 7,500,599 7 341 .036581449
A 5,268,020 0.6547 8,046,464 7 200 .016198467
A 5,398,210 0.8289 6,512,498 7 128 .007835472
A 6,541,130 0.8426 7,763,031 9 82 .020902202
G1 314,678,796 0.9855 319,308,773 7 198 .032169495
G1 318,256,468 1.0568 301,151,086 7 66 .003873584
G1 409,345,969 0.9957 411,113,758 5 21 .001601755
Random Totals: 1,064,495,993   1,061,396,209 49 1,036  
Catg D1 Exception Values: 997,956   1,343,539      
Catg G1 Exception Values: 215,123,195   206,054,513      
Total Test Values (4): 1,280,617,144   1,268,794,261      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 63,439,713

Confidence Interval Values (5)

State Lower Limit: 1,205,354,548 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,280,617,144 (Within Confidence Interval)
State Upper Limit: 1,332,233,974 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,587,811,008 (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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