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2007 Confidence Interval Detail
230/Upshur
230-906/New Diana ISD

Category Summary

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

Stratum
Variance
A 17,683,375 1.0298 17,171,660 15 281 .052658805
A 17,826,493 1.0428 17,094,834 15 170 .026527827
A 17,559,004 1.0681 16,439,476 15 127 .016905534
A 17,557,964 1.0335 16,988,838 15 77 .012424124
D3 65,788,810 0.9950 66,119,407 20 2,074 .032220667
Random Totals: 136,415,646   133,814,215 80 2,729  
Catg D1 Exception Values: 2,960,240   2,607,953      
Total Test Values (4): 139,375,886   136,422,168      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,821,108

Confidence Interval Values (5)

State Lower Limit: 129,601,060 (State Test Value minus Margin of Error Percent)
Local Test Value: 139,375,886 (Within Confidence Interval)
State Upper Limit: 143,243,276 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 130,779,588 (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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