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2007 Confidence Interval Detail
123/Jefferson
123-908/Port Neches-Groves ISD

Category Summary

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

Stratum
Variance
A 225,687,248 0.9580 235,581,678 27 3,413 .043818007
A 225,676,000 1.0143 222,494,331 42 2,202 .015032746
A 225,719,650 0.9762 231,222,751 43 1,494 .003556377
A 225,456,079 0.9799 230,080,701 56 883 .002107557
F1 16,058,061 0.8965 17,911,948 10 202 .020497249
F1 16,048,768 0.9612 16,696,596 7 88 .006222998
F1 16,253,535 1.1195 14,518,566 6 39 .077153333
F1 15,595,071 0.9977 15,631,022 4 11 .008118696
Random Totals: 966,494,412   984,137,593 195 8,332  
Catg D1 Exception Values: 143,820   87,330      
Total Test Values (4): 966,638,232   984,224,923      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 49,211,246

Confidence Interval Values (5)

State Lower Limit: 935,013,677 (State Test Value minus Margin of Error Percent)
Local Test Value: 966,638,232 (Within Confidence Interval)
State Upper Limit: 1,033,436,169 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,082,350,313 (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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