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2009 Confidence Interval Detail
101/Harris
101-905/Channelview ISD

Category Summary

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

Stratum
Variance
A 275,416,223 1.0415 264,441,885 55 3,533 .063938204
A 152,586,628 1.0542 144,741,632 43 1,503 .032915152
A 177,809,385 1.0094 176,153,542 36 1,442 .020012454
A 134,521,291 1.0132 132,768,744 18 767 .022312448
F1 43,471,036 0.9931 43,773,070 8 259 .020909892
F1 40,388,658 0.9576 42,176,961 7 85 .001742171
F1 48,540,780 0.9772 49,673,332 7 37 .001622359
F1 48,240,320 0.9821 49,119,560 4 9 .000203346
L1 21,116,565 0.9667 21,843,969 12 90 .014763379
L1 25,104,786 0.9711 25,851,906 10 35 .011205415
L1 22,956,935 0.8999 25,510,540 6 11 .029635203
Random Totals: 990,152,607   976,055,141 206 7,771  
Catg D1 Exception Values: 45,251   31,929      
Catg L1 Exception Values: 23,766,325   30,181,727      
Total Test Values (4): 1,013,964,183   1,006,268,797      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,313,440

Confidence Interval Values (5)

State Lower Limit: 955,955,357 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,013,964,183 (Within Confidence Interval)
State Upper Limit: 1,056,582,237 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,448,601,423 (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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