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2008 Confidence Interval Detail
211/Sherman
211-902/Stratford ISD

Category Summary

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

Stratum
Variance
A 7,354,630 0.8163 9,009,715 9 242 .072881034
A 8,070,910 0.9532 8,467,174 8 149 .011952438
A 8,172,770 0.9375 8,717,621 8 104 .012117719
A 10,954,950 0.9323 11,750,456 13 79 .024766441
D3 8,045,320 0.8171 9,846,188 17 1,450 .006232781
G1 59,231,500 1.0240 57,843,262 7 160 .004234672
G1 58,775,120 1.0499 55,981,636 6 79 .010552618
G1 58,811,710 0.9913 59,327,862 6 52 .005208637
G1 58,230,260 1.0750 54,167,684 5 24 .011785333
Random Totals: 277,647,170   275,111,598 79 2,339  
Catg J Exception Values: 17,073,920   17,074,174      
Catg D1 Exception Values: 38,086,260   51,817,949      
Total Test Values (4): 332,807,350   344,003,721      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,200,186

Confidence Interval Values (5)

State Lower Limit: 326,803,535 (State Test Value minus Margin of Error Percent)
Local Test Value: 332,807,350 (Within Confidence Interval)
State Upper Limit: 361,203,907 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 408,650,546 (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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