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2006 Confidence Interval Detail
170/Montgomery
170-902/Conroe ISD

Category Summary

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

Stratum
Variance
A 2,384,492,367 0.9418 2,531,845,792 42 21,325 .009528394
A 2,384,160,454 0.9568 2,491,806,495 44 13,288 .005857278
A 2,384,220,186 0.9394 2,538,024,469 37 8,501 .003131415
A 2,383,875,930 0.9560 2,493,594,069 37 4,170 .011121851
B 103,603,139 1.0369 99,916,230 8 28 .012118670
B 104,947,001 1.0269 102,197,878 6 15 .004260060
B 106,891,640 1.0582 101,012,701 4 9 .001381475
B 96,412,841 0.9698 99,415,179 3 5 .007547174
C 131,552,152 0.9829 133,840,830 13 8,266 .006994798
C 124,995,200 0.9835 127,092,222 13 2,927 .008279879
C 128,243,678 1.0140 126,473,055 16 766 .024199230
C 128,235,675 0.9183 139,644,642 9 135 .050177199
F1 548,766,105 0.9679 566,965,704 7 993 .007640284
F1 550,846,710 0.9421 584,700,892 7 214 .004221682
F1 555,801,503 1.0009 555,301,731 6 70 .028443231
F1 537,316,425 0.9749 551,150,297 5 16 .008561922
L1 303,800,229 0.9429 322,197,719 9 2,477 .014309885
L1 303,463,857 1.0021 302,827,918 8 403 .000128694
L1 307,374,250 0.9800 313,647,194 7 94 .001564459
L1 299,248,312 1.0157 294,622,735 5 21 .001181162
Random Totals: 13,868,247,654   14,476,277,752 286 63,723  
Catg D1 Exception Values: 51,357,029   50,746,354      
Total Test Values (4): 13,919,604,683   14,527,024,106      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 726,351,205

Confidence Interval Values (5)

State Lower Limit: 13,800,672,901 (State Test Value minus Margin of Error Percent)
Local Test Value: 13,919,604,683 (Within Confidence Interval)
State Upper Limit: 15,253,375,311 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 14,459,258,300 (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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