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2008 Confidence Interval Detail
198/Robertson
198-905/Hearne ISD

Category Summary

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

Stratum
Variance
A 15,294,600 0.6705 22,810,738 30 691 .103256715
A 15,336,460 0.7305 20,994,470 23 387 .181834733
A 15,677,340 0.7301 21,472,867 19 267 .034804554
A 15,073,030 0.7842 19,220,900 15 160 .098632732
D3 28,062,840 0.5794 48,434,311 20 1,744 .591299198
F1 3,874,400 0.7039 5,504,191 15 92 .344415010
F1 3,724,870 0.5843 6,374,927 13 28 .126506805
F1 4,935,490 0.7843 6,292,860 7 11 .014872382
G1 34,522,279 0.9862 35,005,353 9 28 .000939552
G1 34,579,339 0.9971 34,679,911 8 13 .024240284
G1 34,889,143 0.9880 35,312,898 4 6 .001086562
Random Totals: 205,969,791   256,103,426 163 3,427  
Catg J Exception Values: 23,069,822   23,483,510      
Catg D1 Exception Values: 6,056,990   6,668,411      
Catg F1 Exception Values: 6,147,640   7,294,400      
Catg G1 Exception Values: 31,125,603   27,859,692      
Total Test Values (4): 272,369,846   321,409,439      

Margin of Error

Margin of Error Percent: 5.4188325
Margin of Error Value: 17,416,639

Confidence Interval Values (5)

Local Test Value: 272,369,846 (Outside Confidence Interval)
State Lower Limit: 303,992,800 (State Test Value minus Margin of Error Percent)
State Upper Limit: 338,826,078 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 341,893,121 (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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