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2007 Confidence Interval Detail
063/Dickens
063-903/Spur ISD

Category Summary

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

Stratum
Variance
A 3,173,184 0.8800 3,605,891 7 306 .085759406
A 3,154,418 0.8286 3,806,925 9 158 .058063262
A 3,180,709 1.0221 3,111,935 7 95 .025526239
A 3,144,251 1.0111 3,109,733 7 57 .069592995
D3 11,890,310 0.8092 14,693,908 20 2,384 .024185453
G1 40,588,277 1.0526 38,560,020 15 49 .031925849
G1 40,061,030 1.0428 38,416,791 11 13 .006366755
Random Totals: 105,192,179   105,305,203 76 3,062  
Catg D1 Exception Values: 21,571,790   22,713,794      
Catg G1 Exception Values: 76,944,846   71,989,612      
Total Test Values (4): 203,708,815   200,008,609      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,000,430

Confidence Interval Values (5)

State Lower Limit: 190,008,179 (State Test Value minus Margin of Error Percent)
Local Test Value: 203,708,815 (Within Confidence Interval)
State Upper Limit: 210,009,039 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 239,386,322 (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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