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2008 Confidence Interval Detail
236/Walker
236-901/New Waverly ISD

Category Summary

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

Stratum
Variance
A 14,513,670 0.9682 14,990,364 16 343 .021242586
A 15,173,030 0.9679 15,676,237 13 208 .020694213
A 16,111,370 0.9312 17,301,729 13 150 .030964815
A 17,007,140 1.0212 16,654,074 12 88 .005659712
C 8,355,470 0.9421 8,868,984 9 537 .024826232
C 2,588,190 0.9804 2,639,933 8 91 .018659823
C 3,148,900 0.9828 3,204,009 8 81 .029866587
C 4,074,430 0.9451 4,311,110 7 67 .010425943
D3 74,127,950 0.9514 77,914,600 20 1,945 .035158381
Random Totals: 155,100,150   161,561,040 106 3,510  
Catg J Exception Values: 7,301,177   7,336,201      
Catg D1 Exception Values: 5,765,310   5,808,710      
Total Test Values (4): 168,166,637   174,705,951      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 8,735,298

Confidence Interval Values (5)

State Lower Limit: 165,970,653 (State Test Value minus Margin of Error Percent)
Local Test Value: 168,166,637 (Within Confidence Interval)
State Upper Limit: 183,441,249 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 182,815,417 (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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