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2009 Confidence Interval Detail
133/Kerr
133-904/Ingram ISD

Category Summary

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

Stratum
Variance
A 58,005,653 1.0279 56,431,222 19 757 .017834229
A 57,136,750 1.0316 55,386,535 15 377 .005166077
A 58,255,772 0.9691 60,113,272 14 294 .003472603
A 63,075,175 0.9690 65,093,060 9 177 .002996097
D3 133,618,152 0.9976 133,939,607 13 2,636 .017774142
F1 10,964,003 0.8739 12,546,061 7 105 .099513916
F1 12,691,408 0.8486 14,955,701 9 54 .054064409
F1 11,306,723 0.9909 11,410,559 7 27 .006017199
F1 10,908,555 0.9180 11,882,958 5 10 .008075170
Random Totals: 415,962,191   421,758,975 98 4,437  
Catg D1 Exception Values: 7,090,750   7,752,782      
Total Test Values (4): 423,052,941   429,511,757      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 21,475,588

Confidence Interval Values (5)

State Lower Limit: 408,036,169 (State Test Value minus Margin of Error Percent)
Local Test Value: 423,052,941 (Within Confidence Interval)
State Upper Limit: 450,987,345 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 420,998,669 (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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