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2009 Confidence Interval Detail
174/Nacogdoches
174-906/Woden ISD

Category Summary

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

Stratum
Variance
A 8,592,960 0.9491 9,053,798 7 242 .027747258
A 8,495,600 1.0277 8,266,615 8 127 .006807877
A 9,778,920 0.9778 10,000,941 6 92 .003566467
A 10,553,120 1.0219 10,326,960 6 57 .004541496
D3 37,677,800 0.9516 39,594,157 20 1,606 .068584250
G1 10,842,739 0.8964 12,095,871 5 21 .041992366
G1 10,086,290 0.9876 10,212,930 5 11 .019424727
G1 9,913,870 1.0721 9,247,150 4 8 .011155784
G1 9,887,590 1.0028 9,859,982 3 5 .014922260
Random Totals: 115,828,889   118,658,404 64 2,169  
Catg J Exception Values: 7,803,720   7,707,262      
Catg D1 Exception Values: 15,955,270   9,502,541      
Total Test Values (4): 139,587,879   135,868,207      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,793,410

Confidence Interval Values (5)

State Lower Limit: 129,074,797 (State Test Value minus Margin of Error Percent)
Local Test Value: 139,587,879 (Within Confidence Interval)
State Upper Limit: 142,661,617 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 149,437,149 (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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