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2006 Confidence Interval Detail
057/Dallas
057-911/Highland Park ISD

Category Summary

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

Stratum
Variance
A 2,294,670,439 0.9672 2,372,488,047 50 3,519 .002147171
A 2,295,306,590 0.9618 2,386,469,734 50 2,257 .001599460
A 2,293,835,185 0.9710 2,362,343,136 51 1,466 .000616455
A 2,294,476,417 0.9674 2,371,796,999 48 651 .004509445
B 116,833,013 0.9734 120,025,697 6 395 .002183294
B 116,562,238 0.9825 118,638,410 12 264 .002697727
B 116,995,246 0.9705 120,551,516 14 208 .013852434
B 116,043,645 0.9910 117,097,523 22 113 .002859650
F1 222,263,167 0.9201 241,564,142 7 123 .045116304
F1 239,948,798 0.8718 275,233,767 5 19 .023733207
F1 222,880,882 0.9922 224,633,020 3 5 .000723023
F1 199,910,588 1.0000 199,910,588 2 3
Random Totals: 10,529,726,208   10,910,752,579 270 9,023  
Total Test Values (4): 10,529,726,208   10,910,752,579      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 545,537,629

Confidence Interval Values (5)

State Lower Limit: 10,365,214,950 (State Test Value minus Margin of Error Percent)
Local Test Value: 10,529,726,208 (Within Confidence Interval)
State Upper Limit: 11,456,290,208 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 9,918,808,298 (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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