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2008 Confidence Interval Detail
114/Howard
058-909/Sands ISD

Category Summary

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

Stratum
Variance
A 3,239,049 0.9412 3,441,404 15 68 .027522897
D3 2,365,242 1.0323 2,291,235 13 591 .002502302
G1 4,544,706 0.7796 5,829,536 5 16 .129084277
G1 4,345,913 1.0651 4,080,286 5 6 .008867257
Random Totals: 14,494,910   15,642,461 38 681  
Catg J Exception Values: 883,826   871,068      
Catg D1 Exception Values: 9,673,946   13,403,830      
Catg G1 Exception Values: 13,671,045   13,337,473      
Total Test Values (4): 38,723,727   43,254,832      

Margin of Error

Margin of Error Percent: 5.0000009
Margin of Error Value: 2,162,742

Confidence Interval Values (5)

Local Test Value: 38,723,727 (Outside Confidence Interval)
State Lower Limit: 41,092,090 (State Test Value minus Margin of Error Percent)
State Upper Limit: 45,417,574 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 44,453,198 (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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