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2009 Confidence Interval Detail
078/Foard
078-901/Crowell ISD

Category Summary

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

Stratum
Variance
A 2,071,120 0.8216 2,520,837 15 192 .025963932
A 2,287,660 0.9783 2,338,403 17 123 .041831960
A 2,290,320 0.9648 2,373,881 16 70 .065446921
A 2,194,560 1.0582 2,073,861 13 37 .015308255
D3 7,420,880 0.9737 7,621,321 38 3,427 .051362486
G1 1,947,330 1.0177 1,913,462 5 9 .020510124
G1 2,118,410 1.0357 2,045,390 2 3 .004093010
Random Totals: 20,330,280   20,887,155 106 3,861  
Catg J Exception Values: 3,070,732   2,891,097      
Catg D1 Exception Values: 31,206,810   30,748,437      
Catg G1 Exception Values: 4,562,480   4,617,163      
Total Test Values (4): 59,170,302   59,143,852      

Margin of Error

Margin of Error Percent: 5.0000007
Margin of Error Value: 2,957,193

Confidence Interval Values (5)

State Lower Limit: 56,186,659 (State Test Value minus Margin of Error Percent)
Local Test Value: 59,170,302 (Within Confidence Interval)
State Upper Limit: 62,101,045 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 60,929,381 (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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