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2008 Confidence Interval Detail
028/Caldwell
028-906/Prairie Lea ISD

Category Summary

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

Stratum
Variance
A 3,821,170 0.8319 4,593,304 7 86 .020676402
A 4,400,200 0.9318 4,722,258 6 59 .013323772
A 4,556,460 0.9980 4,565,591 6 39 .009342218
A 2,041,870 0.9417 2,168,281 5 11 .001113040
D3 20,457,595 0.9730 21,025,277 20 755 .020653388
G1 7,044,700 0.9991 7,051,046 7 15 .000078299
G1 5,943,571 1.0065 5,905,187 4 5 .000166380
G1 9,208,822 1.0037 9,174,875 3 4 .000037917
Random Totals: 57,474,388   59,205,819 58 974  
Catg J Exception Values: 1,233,730   1,190,176      
Catg D1 Exception Values: 1,357,714   1,388,996      
Catg G1 Exception Values: 3,396,950   3,386,359      
Total Test Values (4): 63,462,782   65,171,350      

Margin of Error

Margin of Error Percent: 5.0000008
Margin of Error Value: 3,258,568

Confidence Interval Values (5)

State Lower Limit: 61,912,782 (State Test Value minus Margin of Error Percent)
Local Test Value: 63,462,782 (Within Confidence Interval)
State Upper Limit: 68,429,918 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 72,320,267 (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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