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2008 Confidence Interval Detail
170/Montgomery
170-907/Splendora ISD

Category Summary

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

Stratum
Variance
A 55,282,673 0.7619 72,558,962 14 1,615 .680753071
A 58,947,223 0.8701 67,747,642 13 829 .051249816
A 59,819,900 0.9713 61,587,460 13 437 .013152595
A 74,821,610 0.9937 75,295,975 12 256 .004225756
C 6,251,995 0.8608 7,263,005 7 1,879 .017163249
C 5,988,040 0.9171 6,529,321 7 441 .080111242
C 4,249,800 0.9445 4,499,524 7 131 .023437206
C 4,827,520 0.9572 5,043,377 7 84 .030466587
D3 36,305,300 0.9344 38,854,131 11 956 .043767468
Random Totals: 306,494,061   339,379,397 91 6,628  
Catg J Exception Values: 23,067,111   22,792,733      
Catg D1 Exception Values: 9,253,350   9,204,556      
Total Test Values (4): 338,814,522   371,376,686      

Margin of Error

Margin of Error Percent: 9.0063403
Margin of Error Value: 33,447,448

Confidence Interval Values (5)

State Lower Limit: 337,929,238 (State Test Value minus Margin of Error Percent)
Local Test Value: 338,814,522 (Within Confidence Interval)
State Upper Limit: 404,824,134 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 327,944,062 (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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