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2006 Confidence Interval Detail
227/Travis
227-907/Manor ISD

Category Summary

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

Stratum
Variance
A 169,688,267 0.9962 170,335,542 27 1,559 .011356067
A 169,912,679 0.9831 172,833,566 50 1,032 .002585076
A 169,305,304 0.9896 171,084,584 56 851 .003409795
A 169,624,033 1.0154 167,051,441 55 637 .003682671
B 19,317,919 0.9992 19,333,386 5 20 .028222873
D3 111,972,364 0.9836 113,839,329 18 1,791 .034247435
F1 92,057,009 0.9319 98,784,214 7 118 .013457927
F1 89,071,439 0.9953 89,492,052 6 37 .015923312
F1 94,018,767 0.9878 95,179,963 5 18 .006213683
F1 87,038,104 1.0350 84,094,786 5 9 .003958502
L1 51,218,425 0.9493 53,953,887 7 241 .002913540
L1 52,226,984 0.9855 52,995,418 8 56 .001700433
L1 50,110,039 0.9548 52,482,236 6 19 .006505499
L1 50,091,673 1.0045 49,867,270 3 6 .000081990
Random Totals: 1,375,653,006   1,391,327,674 258 6,394  
Catg D1 Exception Values: 4,191,404   4,032,530      
Catg B Exception Values: 95,525,273   95,804,971      
Total Test Values (4): 1,475,369,683   1,491,165,175      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 74,558,259

Confidence Interval Values (5)

State Lower Limit: 1,416,606,916 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,475,369,683 (Within Confidence Interval)
State Upper Limit: 1,565,723,434 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,909,547,346 (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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