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2006 Confidence Interval Detail
057/Dallas
057-906/DeSoto ISD

Category Summary

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

Stratum
Variance
A 467,139,871 1.0193 458,294,782 35 4,263 .002988115
A 465,745,984 1.0070 462,508,425 46 3,424 .002793473
A 466,475,518 1.0049 464,200,933 45 2,674 .001648472
A 466,317,234 0.9972 467,626,588 41 1,698 .002658227
B 30,638,630 0.8777 34,907,861 12 375 .130039579
B 30,449,075 1.0010 30,418,656 18 209 .002436398
B 31,033,222 0.9357 33,165,782 7 16 .006081368
B 30,030,358 0.9256 32,444,207 2 3 .001362921
F1 43,839,386 1.0111 43,358,111 7 147 .005685144
F1 44,254,234 0.9527 46,451,384 6 45 .015962501
F1 45,608,506 0.7978 57,167,844 5 18 .107797651
F1 41,011,335 0.9418 43,545,694 4 8 .015449744
Random Totals: 2,162,543,353   2,174,090,267 228 12,880  
Catg D1 Exception Values: 200,509   193,573      
Total Test Values (4): 2,162,743,862   2,174,283,840      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 108,714,192

Confidence Interval Values (5)

State Lower Limit: 2,065,569,648 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,162,743,862 (Within Confidence Interval)
State Upper Limit: 2,282,998,032 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,202,480,862 (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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