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2006 Confidence Interval Detail
239/Washington
239-901/Brenham ISD

Category Summary

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

Stratum
Variance
A 162,422,377 0.9209 176,373,523 21 2,425 .016539925
A 162,483,535 0.9017 180,196,889 29 1,467 .007331325
A 162,117,932 0.9634 168,276,865 60 1,054 .008206491
A 162,340,227 0.9535 170,257,186 41 653 .005395607
D3 457,278,816 0.9102 502,393,777 31 9,879 .053415318
F1 42,245,654 0.8602 49,111,432 10 373 .014201556
F1 42,361,046 0.9480 44,684,648 9 126 .009207868
F1 42,224,366 0.9592 44,020,398 8 39 .011464244
F1 41,322,549 0.9729 42,473,583 5 9 .007434367
G1 37,968,254 0.9520 39,882,620 6 42 .015526706
G1 39,807,390 1.1317 35,174,861 5 19 .086274122
G1 39,067,357 1.1197 34,890,915 4 9 .032770574
G1 34,031,080 0.9797 34,736,225 3 5 .001375772
L1 26,746,113 1.0367 25,799,279 7 503 .037380108
L1 27,000,545 0.8932 30,229,002 8 104 .019999043
L1 26,842,233 1.0165 26,406,525 6 36 .037598454
L1 26,008,825 1.0702 24,302,771 4 10 .080674788
Random Totals: 1,532,268,299   1,629,210,499 257 16,753  
Catg D1 Exception Values: 24,025,882   23,202,992      
Total Test Values (4): 1,556,294,181   1,652,413,491      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 82,620,675

Confidence Interval Values (5)

Local Test Value: 1,556,294,181 (Outside Confidence Interval)
State Lower Limit: 1,569,792,816 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,735,034,166 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,701,618,560 (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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