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2006 Confidence Interval Detail
170/Montgomery
170-908/New Caney ISD

Category Summary

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

Stratum
Variance
A 182,832,360 0.9357 195,396,345 10 3,764 .133850949
A 182,921,371 0.9226 198,267,257 26 1,929 .034237252
A 183,026,609 0.9352 195,708,521 33 1,351 .025546593
A 182,545,440 0.9516 191,830,013 31 815 .005853122
B 75,444,401 1.0261 73,525,388 7 21 .002807245
C 24,269,808 0.9760 24,866,607 8 4,110 .011755028
C 21,129,755 0.9633 21,934,761 8 1,102 .010181829
C 22,657,856 0.9332 24,279,743 9 770 .009726472
C 22,549,767 0.9438 23,892,527 9 180 .016880311
F1 67,408,590 0.9886 68,185,909 7 256 .011591928
F1 70,146,233 0.9131 76,822,071 6 40 .000517516
F1 81,305,514 0.9279 87,623,143 5 8 .002698238
L1 30,429,478 0.9794 31,069,510 8 321 .010123054
L1 30,627,588 1.0280 29,793,374 7 60 .019524513
L1 32,387,382 1.0311 31,410,515 5 10 .001449874
L1 27,336,497 1.0575 25,850,115 2 3 .006941024
Random Totals: 1,237,018,649   1,300,455,799 181 14,740  
Catg D1 Exception Values: 15,787,546   15,722,965      
Catg F1 Exception Values: 46,797,490   47,113,413      
Catg L1 Exception Values: 64,871,832   64,871,832      
Total Test Values (4): 1,364,475,517   1,428,164,009      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 71,408,200

Confidence Interval Values (5)

State Lower Limit: 1,356,755,809 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,364,475,517 (Within Confidence Interval)
State Upper Limit: 1,499,572,209 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,379,295,771 (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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