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2008 Confidence Interval Detail
174/Nacogdoches
174-904/Nacogdoches ISD

Category Summary

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

Stratum
Variance
A 214,904,150 0.9934 216,331,941 18 3,876 .030767964
A 216,388,800 0.8891 243,379,597 21 2,046 .012985218
A 221,311,440 1.0047 220,276,142 24 1,366 .011294772
A 216,335,510 1.0257 210,914,995 15 780 .030762316
D3 138,671,000 0.8910 155,635,241 38 4,459 .049631700
F1 63,793,010 0.8509 74,971,219 9 437 .060545473
F1 62,595,260 0.9106 68,740,676 10 159 .035130058
F1 70,512,440 0.7872 89,573,730 8 75 .064582717
F1 75,292,600 0.8801 85,550,051 7 21 .062724956
L1 32,115,280 1.0849 29,602,065 7 490 .012936770
L1 36,478,540 1.0141 35,971,344 7 125 .000750020
L1 36,476,720 1.0090 36,151,358 7 42 .000395139
L1 33,616,900 1.0091 33,313,745 3 8 .000246814
Random Totals: 1,418,491,650   1,500,412,104 174 13,884  
Catg D1 Exception Values: 20,218,500   21,172,050      
Total Test Values (4): 1,438,710,150   1,521,584,154      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 76,079,208

Confidence Interval Values (5)

Local Test Value: 1,438,710,150 (Outside Confidence Interval)
State Lower Limit: 1,445,504,946 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,597,663,362 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,731,206,037 (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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