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2008 Confidence Interval Detail
093/Grimes
093-905/Richards ISD

Category Summary

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

Stratum
Variance
A 1,404,310 0.9747 1,440,761 7 51 .008814440
A 1,429,410 1.0391 1,375,623 6 26 .026860452
A 1,437,350 1.0018 1,434,767 5 16 .004918289
A 4,036,180 1.0156 3,974,183 4 19 .000933140
D3 16,577,519 0.9738 17,023,536 21 660 .011476545
G1 55,358,548 0.9067 61,054,977 17 32 .146475393
Random Totals: 80,243,317   86,303,847 60 804  
Catg J Exception Values: 4,635,380   4,715,596      
Catg D1 Exception Values: 2,250,685   2,382,592      
Total Test Values (4): 87,129,382   93,402,035      

Margin of Error

Margin of Error Percent: 8.3753925
Margin of Error Value: 7,822,787

Confidence Interval Values (5)

State Lower Limit: 85,579,248 (State Test Value minus Margin of Error Percent)
Local Test Value: 87,129,382 (Within Confidence Interval)
State Upper Limit: 101,224,822 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 106,869,524 (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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