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2008 Confidence Interval Detail
152/Lubbock
152-903/Slaton ISD

Category Summary

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

Stratum
Variance
A 37,885,768 0.8432 44,930,939 24 1,045 .116247539
A 38,043,841 0.9728 39,107,567 16 520 .055617463
A 39,028,287 0.9758 39,996,195 16 313 .010229640
A 45,276,345 1.0272 44,077,439 15 147 .014253331
D3 12,053,706 0.8310 14,505,061 13 682 .041761426
F1 4,373,210 1.2095 3,615,717 7 103 .041574953
F1 4,262,751 1.0531 4,047,812 5 26 .022369477
F1 6,206,444 1.0173 6,100,898 4 9 .014380711
L1 3,821,768 1.0010 3,817,950 7 92 .039128526
L1 3,537,366 1.0029 3,527,137 5 20 .000376210
L1 6,131,148 0.9912 6,185,581 4 11 .000547368
Random Totals: 200,620,634   209,912,296 116 2,968  
Catg J Exception Values: 36,771,188   30,459,367      
Catg D1 Exception Values: 13,594,803   10,529,805      
Catg F1 Exception Values: 3,630,440   3,865,433      
Catg L1 Exception Values: 5,789,168   5,514,201      
Total Test Values (4): 260,406,233   260,281,102      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,014,055

Confidence Interval Values (5)

State Lower Limit: 247,267,047 (State Test Value minus Margin of Error Percent)
Local Test Value: 260,406,233 (Within Confidence Interval)
State Upper Limit: 273,295,157 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 242,625,187 (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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