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2008 Confidence Interval Detail
250/Wood
230-905/Harmony ISD

Category Summary

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

Stratum
Variance
A 226,604,071 0.9057 250,197,716 37 1,950 .047046330
D3 22,161,989 1.0131 21,875,421 20 763 .242746850
Random Totals: 248,766,060   272,073,137 57 2,713  
Catg D1 Exception Values: 2,345,081   2,228,199      
Total Test Values (4): 251,111,141   274,301,336      

Margin of Error

Margin of Error Percent: 6.6721068
Margin of Error Value: 18,301,678

Confidence Interval Values (5)

Local Test Value: 251,111,141 (Outside Confidence Interval)
State Lower Limit: 255,999,658 (State Test Value minus Margin of Error Percent)
State Upper Limit: 292,603,014 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 213,134,101 (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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