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2008 Confidence Interval Detail
044/Collingsworth
044-904/Samnorwood ISD

Category Summary

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

Stratum
Variance
D3 3,598,570 0.8968 4,012,678 20 986 .082054429
G1 3,677,420 0.9801 3,752,087 9 77 .005059317
G1 3,732,640 0.9968 3,744,623 8 40 .003740201
G1 3,690,750 1.0770 3,426,880 7 28 .003587167
G1 3,588,280 0.9897 3,625,624 6 17 .006446444
Random Totals: 18,287,660   18,561,892 50 1,148  
Catg J Exception Values: 1,429,650   1,362,914      
Catg D1 Exception Values: 13,131,360   14,867,667      
Total Test Values (4): 32,848,670   34,792,473      

Margin of Error

Margin of Error Percent: 5.0000010
Margin of Error Value: 1,739,624

Confidence Interval Values (5)

Local Test Value: 32,848,670 (Outside Confidence Interval)
State Lower Limit: 33,052,849 (State Test Value minus Margin of Error Percent)
State Upper Limit: 36,532,097 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 38,504,235 (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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