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2009 Confidence Interval Detail
101/Harris
101-908/Deer Park ISD

Category Summary

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

Stratum
Variance
A 471,240,382 0.9874 477,253,780 108 4,698 .029694685
A 430,605,790 1.0026 429,489,118 41 3,275 .019113589
A 391,992,677 0.9589 408,794,115 40 2,342 .006094691
A 401,895,818 0.9733 412,920,803 39 1,732 .010192355
F1 73,483,009 0.9295 79,056,492 7 251 .003290780
F1 81,551,422 0.9403 86,729,152 7 105 .010038215
F1 87,167,940 0.9968 87,447,773 6 45 .004278930
F1 93,100,743 0.9956 93,512,197 4 11 .001147196
L1 53,119,352 0.9845 53,955,665 9 416 .004618034
L1 61,007,973 0.8900 68,548,284 6 78 .012541805
L1 46,669,981 0.9715 48,039,095 8 24 .031844452
L1 49,975,452 0.9376 53,301,463 5 10 .013311652
Random Totals: 2,241,810,539   2,299,047,937 280 12,987  
Catg D1 Exception Values: 29,570   21,406      
Total Test Values (4): 2,241,840,109   2,299,069,343      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 114,953,467

Confidence Interval Values (5)

State Lower Limit: 2,184,115,876 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,241,840,109 (Within Confidence Interval)
State Upper Limit: 2,414,022,810 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 7,502,702,055 (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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