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2009 Confidence Interval Detail
113/Houston
113-903/Lovelady ISD

Category Summary

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

Stratum
Variance
A 5,130,270 0.9571 5,360,224 7 153 .005105453
A 5,631,670 0.9325 6,039,324 8 97 .006565944
A 6,436,450 0.9527 6,756,009 7 79 .004447806
A 6,336,170 0.9523 6,653,544 6 48 .003337902
D3 65,489,380 0.9421 69,514,255 28 3,886 .013365664
G1 18,810,410 0.9965 18,876,478 6 19 .005411742
G1 16,287,120 1.0045 16,214,156 4 7 .003570720
G1 17,444,240 1.0321 16,901,696 2 3 .002543841
Random Totals: 141,565,710   146,315,686 68 4,292  
Catg J Exception Values: 9,961,078   9,982,685      
Catg D1 Exception Values: 23,183,230   25,020,654      
Catg G1 Exception Values: 16,536,820   15,387,947      
Total Test Values (4): 191,246,838   196,706,972      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 9,835,349

Confidence Interval Values (5)

State Lower Limit: 186,871,623 (State Test Value minus Margin of Error Percent)
Local Test Value: 191,246,838 (Within Confidence Interval)
State Upper Limit: 206,542,321 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 226,762,453 (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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