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2006 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 13,713,823 0.9639 14,227,433 15 339 .004740397
A 13,674,121 0.9759 14,011,806 16 189 .009449089
A 13,721,570 0.9601 14,291,813 15 130 .002184987
A 13,541,703 0.9884 13,700,630 15 72 .002415072
C 16,833,940 0.9494 17,731,135 18 1,165 .013522255
D3 57,241,792 0.9512 60,178,503 20 1,866 .014762217
Random Totals: 128,726,949   134,141,320 99 3,761  
Catg J Exception Values: 6,917,953   6,525,429      
Catg D1 Exception Values: 5,676,060   5,734,488      
Total Test Values (4): 141,320,962   146,401,237      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 7,320,062

Confidence Interval Values (5)

State Lower Limit: 139,081,175 (State Test Value minus Margin of Error Percent)
Local Test Value: 141,320,962 (Within Confidence Interval)
State Upper Limit: 153,721,299 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 160,190,520 (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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