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2009 Confidence Interval Detail
127/Jones
127-906/Stamford ISD

Category Summary

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

Stratum
Variance
A 10,743,390 1.0335 10,395,152 17 518 .174319954
A 12,592,810 0.9595 13,124,346 15 301 .050726462
A 12,240,880 1.0285 11,901,682 15 166 .005994553
A 14,797,660 1.0003 14,793,222 16 108 .009252218
D3 7,904,040 1.0236 7,721,805 27 839 .059096290
F1 1,278,970 0.8994 1,422,026 6 69 .203560596
F1 1,973,730 0.9120 2,164,178 6 36 .001626346
F1 2,448,340 0.9347 2,619,386 5 21 .005181256
F1 1,874,260 0.8879 2,110,891 2 4 .015668733
L1 1,083,080 0.9902 1,093,799 6 58 .004285221
L1 824,940 0.9700 850,454 5 12 .000272428
L1 819,880 0.9897 828,413 4 6 .000379016
Random Totals: 68,581,980   69,025,354 124 2,138  
Catg J Exception Values: 6,488,209   5,803,295      
Catg D1 Exception Values: 8,041,840   9,943,821      
Catg L1 Exception Values: 941,150   916,648      
Total Test Values (4): 84,053,179   85,689,118      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 4,284,456

Confidence Interval Values (5)

State Lower Limit: 81,404,662 (State Test Value minus Margin of Error Percent)
Local Test Value: 84,053,179 (Within Confidence Interval)
State Upper Limit: 89,973,574 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 69,978,547 (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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