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2008 Confidence Interval Detail
177/Nolan
177-902/Sweetwater ISD

Category Summary

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

Stratum
Variance
A 35,100,887 0.8536 41,121,002 26 1,715 .103573343
A 39,806,123 0.8680 45,859,589 28 957 .066563334
A 37,309,756 0.8625 43,257,688 30 532 .049413625
A 56,174,260 0.9100 61,729,956 19 401 .036138802
D3 29,908,765 0.7335 40,775,412 16 969 .106155349
F1 15,919,018 0.8994 17,699,598 8 286 .246954236
F1 15,127,243 0.8940 16,920,853 6 54 .149096715
F1 15,727,265 0.9490 16,572,460 5 18 .004256969
F1 20,908,256 1.0878 19,220,680 3 7 .026908640
L1 11,382,388 1.0742 10,596,153 7 207 .009659966
L1 9,558,866 1.0438 9,157,756 6 36 .038946965
L1 14,020,119 0.9682 14,480,602 4 16 .002687700
Random Totals: 300,942,946   337,391,749 158 5,198  
Catg J Exception Values: 32,985,809   33,656,355      
Catg D1 Exception Values: 3,509,847   3,979,494      
Catg L1 Exception Values: 5,000,498   6,410,104      
Total Test Values (4): 342,439,100   381,437,702      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 19,071,885

Confidence Interval Values (5)

Local Test Value: 342,439,100 (Outside Confidence Interval)
State Lower Limit: 362,365,817 (State Test Value minus Margin of Error Percent)
State Upper Limit: 400,509,587 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 458,790,669 (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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