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2011 Confidence Interval Detail
101/Harris
101-909/North Forest ISD

Category Summary

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

Stratum
Variance
A 206,984,239 1.0554 196,119,233 18 6,165 .011670722
A 166,246,623 1.0241 162,334,365 16 3,608 .039480134
A 144,286,066 0.9364 154,085,931 11 2,390 .049078142
A 158,292,846 0.9478 167,010,810 10 1,542 .005094422
C 19,025,182 1.0730 17,730,831 10 2,326 .031178986
C 11,346,032 1.1059 10,259,546 10 857 .019628924
C 16,872,851 0.8860 19,043,850 10 571 .023821925
C 15,308,608 0.9307 16,448,488 10 123 .085547135
F1 56,290,801 0.9492 59,303,414 11 349 .013234033
F1 57,645,744 0.9533 60,469,678 10 76 .004510839
F1 47,930,016 0.9522 50,336,081 7 18 .005322412
F1 68,544,136 0.9977 68,702,151 4 9 .004119027
L1 45,384,810 0.9020 50,315,754 10 239 .116674611
L1 24,802,151 1.0067 24,637,083 7 12 .063849353
L1 36,939,480 0.8126 45,458,381 4 6 .040910750
Random Totals: 1,075,899,585   1,102,255,596 148 18,291  
Catg D1 Exception Values: 236,159   470,281      
Catg L1 Exception Values: 45,536,317   46,084,774      
Total Test Values (4): 1,121,672,061   1,148,810,651      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,440,533

Confidence Interval Values (5)

State Lower Limit: 1,091,370,118 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,121,672,061 (Within Confidence Interval)
State Upper Limit: 1,206,251,184 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,515,532,240 (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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