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2010 Confidence Interval Detail
079/Fort Bend
079-901/Lamar CISD

Category Summary

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

Stratum
Variance
A 1,422,584,770 1.0001 1,422,442,526 70 12,032 .019537150
A 1,518,890,621 1.0066 1,508,931,672 50 8,219 .012868287
A 1,430,157,566 0.9588 1,491,611,980 43 5,383 .007288313
A 1,385,319,835 0.9854 1,405,845,175 41 2,973 .016717894
C 94,818,870 0.9806 96,694,748 11 1,443 .014208791
C 87,728,990 0.9744 90,033,857 12 380 .018759699
C 90,057,360 0.9559 94,212,114 10 105 .009472040
C 75,006,290 0.9734 77,055,979 8 26 .008763670
F1 232,522,992 1.1663 199,368,080 10 758 .022221686
F1 248,974,174 0.9557 260,514,988 9 200 .020395298
F1 204,819,370 1.0233 200,155,741 9 62 .017497831
F1 210,502,685 0.9645 218,250,581 7 24 .013233878
L1 69,791,880 1.1087 62,949,292 10 1,346 .034361272
L1 79,812,735 0.9702 82,264,208 9 190 .076227476
L1 50,754,040 0.9678 52,442,695 8 31 .002371407
L1 89,504,520 0.9549 93,731,825 6 17 .001423966
Random Totals: 7,291,246,698   7,356,505,461 313 33,189  
Catg J Exception Values: 140,063,132   136,889,768      
Catg D1 Exception Values: 34,581,870   38,559,156      
Total Test Values (4): 7,465,891,700   7,531,954,385      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 376,597,719

Confidence Interval Values (5)

State Lower Limit: 7,155,356,666 (State Test Value minus Margin of Error Percent)
Local Test Value: 7,465,891,700 (Within Confidence Interval)
State Upper Limit: 7,908,552,104 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 9,880,865,868 (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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