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2008 Confidence Interval Detail
114/Howard
114-902/Coahoma ISD

Category Summary

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

Stratum
Variance
A 13,886,537 0.9412 14,754,077 11 480 .074323634
A 14,557,840 0.9996 14,563,665 9 267 .004793742
A 17,672,485 1.0185 17,351,483 10 216 .004286831
A 22,048,114 0.9936 22,190,131 15 148 .008580568
G1 70,592,655 0.9826 71,842,718 7 95 .010913337
G1 70,905,173 0.9800 72,352,217 7 27 .036015004
G1 76,542,220 0.9304 82,268,078 4 11 .013956718
G1 58,489,659 0.9114 64,175,619 2 3 .018544123
Random Totals: 344,694,683   359,497,988 65 1,247  
Catg J Exception Values: 7,920,337   7,863,207      
Catg D1 Exception Values: 10,914,558   12,791,155      
Total Test Values (4): 363,529,578   380,152,350      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 19,007,618

Confidence Interval Values (5)

State Lower Limit: 361,144,732 (State Test Value minus Margin of Error Percent)
Local Test Value: 363,529,578 (Within Confidence Interval)
State Upper Limit: 399,159,968 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 408,835,143 (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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