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2008 Confidence Interval Detail
225/Titus
194-903/Rivercrest ISD

Category Summary

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

Stratum
Variance
A 12,757,343 0.8945 14,261,982 12 461 .335109265
D3 12,061,245 1.0159 11,872,473 14 900 .066153254
G1 13,034,130 1.0739 12,137,192 5 24 .004153645
G1 12,125,354 1.1735 10,332,641 5 8 .001071555
Random Totals: 49,978,072   48,604,288 36 1,393  
Catg D1 Exception Values: 3,092,849   2,449,017      
Catg G1 Exception Values: 24,918,342   26,045,153      
Total Test Values (4): 77,989,263   77,098,458      

Margin of Error

Margin of Error Percent: 6.6214606
Margin of Error Value: 5,105,044

Confidence Interval Values (5)

State Lower Limit: 71,993,414 (State Test Value minus Margin of Error Percent)
Local Test Value: 77,989,263 (Within Confidence Interval)
State Upper Limit: 82,203,502 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 89,193,274 (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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