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2007 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 7,862,218 0.8215 9,570,564 12 231 .038150049
A 7,880,286 0.8253 9,548,390 9 121 .026776088
A 7,995,278 0.8849 9,035,233 8 79 .024016205
A 7,688,480 0.9412 8,168,806 10 42 .019607082
D3 32,884,360 0.8177 40,215,678 21 1,561 .151050483
G1 6,545,300 1.0193 6,421,368 5 13 .017823913
G1 6,822,021 1.0580 6,448,035 3 6 .002210638
G1 4,781,400 1.0336 4,625,967 2 3 .000423919
G1 5,932,200 1.1008 5,388,990 2 3 .017779221
Random Totals: 88,391,543   99,423,031 72 2,059  
Catg J Exception Values: 7,722,276   7,953,262      
Catg D1 Exception Values: 16,142,187   16,473,866      
Total Test Values (4): 112,256,006   123,850,159      

Margin of Error

Margin of Error Percent: 5.6988058
Margin of Error Value: 7,057,980

Confidence Interval Values (5)

Local Test Value: 112,256,006 (Outside Confidence Interval)
State Lower Limit: 116,792,179 (State Test Value minus Margin of Error Percent)
State Upper Limit: 130,908,139 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 110,743,897 (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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