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2011 Confidence Interval Detail
101/Harris
101-916/La Porte ISD

Category Summary

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

Stratum
Variance
A 385,743,213 1.0848 355,589,245 41 4,015 .046517875
A 380,738,950 0.9919 383,848,120 44 3,165 .022772853
A 384,165,117 1.0048 382,329,933 48 2,565 .016405205
A 400,699,527 0.9296 431,045,102 45 1,665 .033908678
F1 171,656,347 0.9575 179,275,558 10 312 .008480700
F1 187,189,689 0.9072 206,337,841 11 87 .022620252
F1 173,545,050 1.0094 171,928,918 8 23 .011663927
F1 150,314,147 0.9217 163,083,592 4 7 .003247403
L1 109,889,766 0.9033 121,653,677 10 344 .074046063
L1 106,254,099 0.8371 126,931,190 10 64 .036792411
L1 104,594,911 0.9967 104,941,217 7 24 .003602718
L1 114,974,516 1.0715 107,302,395 4 8 .010964297
Random Totals: 2,669,765,332   2,734,266,788 242 12,279  
Catg D1 Exception Values: 1,930,523   1,995,977      
Total Test Values (4): 2,671,695,855   2,736,262,765      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 136,813,138

Confidence Interval Values (5)

State Lower Limit: 2,599,449,627 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,671,695,855 (Within Confidence Interval)
State Upper Limit: 2,873,075,903 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 6,104,115,869 (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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