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2007 Confidence Interval Detail
152/Lubbock
152-902/New Deal ISD

Category Summary

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

Stratum
Variance
A 13,127,743 0.7360 17,836,607 15 397 .024798611
A 13,166,265 0.8922 14,757,078 18 183 .020484336
A 13,118,475 0.8925 14,698,571 15 121 .054387746
A 13,022,185 0.9513 13,688,831 15 74 .041061122
D3 16,812,588 0.8792 19,122,598 18 902 .059112560
G1 6,240,975 1.0615 5,879,392 5 14 .006569572
Random Totals: 75,488,231   85,983,077 86 1,691  
Catg J Exception Values: 4,498,165   4,659,776      
Catg D1 Exception Values: 24,213,563   16,299,445      
Catg G1 Exception Values: 7,999,906   8,139,003      
Total Test Values (4): 112,199,865   115,081,301      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,754,065

Confidence Interval Values (5)

State Lower Limit: 109,327,236 (State Test Value minus Margin of Error Percent)
Local Test Value: 112,199,865 (Within Confidence Interval)
State Upper Limit: 120,835,366 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 160,120,691 (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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