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2011 Confidence Interval Detail
138/Knox
138-902/Knox City-O'Brien CISD

Category Summary

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

Stratum
Variance
A 2,584,510 0.8257 3,130,084 10 164 .080484908
A 3,088,650 0.9271 3,331,518 8 123 .025453102
A 3,644,570 0.9282 3,926,492 9 96 .054526243
A 4,359,520 0.8810 4,948,377 10 68 .043684025
G1 3,533,239 1.0043 3,518,111 5 9 .000817524
G1 4,445,880 0.9887 4,496,693 3 4 .001937244
L1 1,491,020 1.0668 1,397,657 10 101 .005998442
L1 2,134,580 0.9719 2,196,296 10 43 .010996265
L1 2,887,780 1.0030 2,879,143 8 17 .000536148
Random Totals: 28,169,749   29,824,371 73 625  
Catg J Exception Values: 1,106,870   1,204,472      
Catg D1 Exception Values: 6,855,880   6,512,002      
Catg G1 Exception Values: 13,642,300   13,390,246      
Catg L1 Exception Values: 1,148,844   1,163,594      
Total Test Values (4): 50,923,643   52,094,685      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,604,734

Confidence Interval Values (5)

State Lower Limit: 49,489,951 (State Test Value minus Margin of Error Percent)
Local Test Value: 50,923,643 (Within Confidence Interval)
State Upper Limit: 54,699,419 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 65,530,299 (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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