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2008 Confidence Interval Detail
083/Gaines
083-901/Seagraves ISD

Category Summary

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

Stratum
Variance
A 5,189,890 1.3165 3,942,188 10 287 .083642873
A 5,493,450 1.0235 5,367,318 7 146 .032146610
A 5,943,530 0.9929 5,986,031 7 100 .002488534
A 8,189,360 0.9895 8,276,261 7 86 .001003234
D3 8,537,801 0.6953 12,279,305 10 492 .314405714
G1 32,238,630 1.0630 30,327,968 7 29 .005564775
Random Totals: 65,592,661   66,179,071 48 1,140  
Catg J Exception Values: 1,718,989   1,779,659      
Catg D1 Exception Values: 15,088,881   32,982,217      
Catg G1 Exception Values: 53,059,199   53,438,000      
Total Test Values (4): 135,459,730   154,378,947      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,718,947

Confidence Interval Values (5)

Local Test Value: 135,459,730 (Outside Confidence Interval)
State Lower Limit: 146,660,000 (State Test Value minus Margin of Error Percent)
State Upper Limit: 162,097,894 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 178,972,036 (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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