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2009 Confidence Interval Detail
036/Chambers
036-902/Barbers Hill ISD

Category Summary

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

Stratum
Variance
A 200,567,190 0.9212 217,723,828 17 1,532 .020257042
A 193,712,110 0.9514 203,607,431 14 1,058 .008129510
A 196,142,800 0.9851 199,109,532 14 870 .010743131
A 184,239,210 1.0086 182,668,263 14 567 .008776733
D3 64,675,920 1.0781 59,990,650 10 2,161 .036340821
G1 14,109,718 1.0318 13,674,858 5 18 .002651809
G1 14,254,596 1.0288 13,855,556 4 7 .007774692
G1 15,741,194 0.6591 23,882,861 2 3 .050610324
Random Totals: 883,442,738   914,512,979 80 6,216  
Catg J Exception Values: 22,304,200   26,931,058      
Catg D1 Exception Values: 2,655,510   2,965,843      
Catg G1 Exception Values: 10,525,867   9,870,630      
Total Test Values (4): 918,928,315   954,280,510      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 47,714,026

Confidence Interval Values (5)

State Lower Limit: 906,566,484 (State Test Value minus Margin of Error Percent)
Local Test Value: 918,928,315 (Within Confidence Interval)
State Upper Limit: 1,001,994,536 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,995,592,970 (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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