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2009 Confidence Interval Detail
101/Harris
101-906/Crosby ISD

Category Summary

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

Stratum
Variance
A 208,273,963 0.9833 211,811,210 32 2,611 .074077729
A 211,464,787 1.0363 204,057,500 32 1,785 .036521311
A 209,076,348 0.9868 211,873,073 30 1,376 .022988068
A 210,238,055 0.9520 220,838,293 20 883 .026463284
F1 24,358,564 0.9318 26,141,408 7 130 .207986056
F1 26,539,467 0.9907 26,788,601 6 41 .004499260
F1 23,327,026 0.9865 23,646,250 5 15 .007680264
F1 20,454,058 0.9639 21,220,104 3 5 .007706776
Random Totals: 933,732,268   946,376,439 135 6,846  
Catg D1 Exception Values: 5,449,286   4,934,343      
Total Test Values (4): 939,181,554   951,310,782      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 47,565,539

Confidence Interval Values (5)

State Lower Limit: 903,745,243 (State Test Value minus Margin of Error Percent)
Local Test Value: 939,181,554 (Within Confidence Interval)
State Upper Limit: 998,876,321 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,252,892,192 (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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