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2009 Confidence Interval Detail
172/Morris
172-902/Daingerfield-Lone Star ISD

Category Summary

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

Stratum
Variance
A 29,964,030 0.9288 32,261,014 12 972 .027724411
A 30,655,670 0.9846 31,135,151 10 528 .007153710
A 30,671,050 1.0010 30,640,410 10 348 .007741743
A 33,755,680 0.9711 34,760,251 10 243 .035230150
D3 81,580,860 0.9137 89,286,265 20 3,080 .064269113
F1 6,576,470 0.9310 7,063,878 7 110 .023312236
F1 7,310,240 1.1853 6,167,418 6 49 .250814725
F1 8,600,810 0.9182 9,367,033 6 22 .005184555
F1 6,455,240 0.9531 6,772,888 3 6 .000309334
Random Totals: 235,570,050   247,454,308 84 5,358  
Catg J Exception Values: 11,694,808   12,079,578      
Catg D1 Exception Values: 6,754,560   6,659,082      
Total Test Values (4): 254,019,418   266,192,968      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,309,648

Confidence Interval Values (5)

State Lower Limit: 252,883,320 (State Test Value minus Margin of Error Percent)
Local Test Value: 254,019,418 (Within Confidence Interval)
State Upper Limit: 279,502,616 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 472,268,250 (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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