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2007 Confidence Interval Detail
065/Donley
065-901/Clarendon ISD

Category Summary

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

Stratum
Variance
A 10,838,787 0.7731 14,019,903 15 555 .097165496
A 10,855,862 0.9265 11,717,066 14 262 .155969061
A 10,852,208 0.9131 11,885,016 15 166 .011474290
A 10,777,375 0.9280 11,613,551 15 95 .012687972
D3 17,383,513 0.8193 21,217,519 19 2,814 .236530460
F1 2,547,201 0.9288 2,742,464 13 77 .018302425
F1 2,674,661 0.9584 2,790,756 10 25 .005027800
F1 2,855,417 0.8724 3,273,059 6 10 .020606618
Random Totals: 68,785,024   79,259,334 107 4,004  
Catg J Exception Values: 12,440,999   13,391,586      
Catg D1 Exception Values: 28,516,321   37,451,795      
Catg F1 Exception Values: 1,998,810   1,937,973      
Total Test Values (4): 111,741,154   132,040,688      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,602,034

Confidence Interval Values (5)

Local Test Value: 111,741,154 (Outside Confidence Interval)
State Lower Limit: 125,438,654 (State Test Value minus Margin of Error Percent)
State Upper Limit: 138,642,722 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 131,964,972 (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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