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2007 Confidence Interval Detail
030/Callahan
030-901/Cross Plains ISD

Category Summary

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

Stratum
Variance
A 3,742,692 0.9175 4,079,228 9 223 .013253887
A 3,745,843 0.9671 3,873,274 13 110 .014821593
A 3,795,878 1.0160 3,736,100 9 65 .004982058
A 3,678,095 0.9777 3,761,987 9 36 .020020663
D3 44,723,270 1.0190 43,889,372 39 3,618 .042062022
G1 2,159,486 1.0465 2,063,532 13 70 .201014382
G1 2,164,893 0.9950 2,175,772 9 19 .019677159
G1 2,161,142 1.0174 2,124,181 6 9 .090371590
G1 1,994,774 0.9070 2,199,310 4 5 .800792076
L1 633,525 0.9508 666,307 10 42 .005215295
L1 656,214 0.9691 677,138 9 11 .000846411
Random Totals: 69,455,812   69,246,201 130 4,208  
Catg J Exception Values: 2,423,260   2,592,197      
Catg D1 Exception Values: 11,085,780   11,122,852      
Catg L1 Exception Values: 1,728,540   1,817,720      
Total Test Values (4): 84,693,392   84,778,970      

Margin of Error

Margin of Error Percent: 5.0000006
Margin of Error Value: 4,238,949

Confidence Interval Values (5)

State Lower Limit: 80,540,021 (State Test Value minus Margin of Error Percent)
Local Test Value: 84,693,392 (Within Confidence Interval)
State Upper Limit: 89,017,919 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 80,765,141 (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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