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2009 Confidence Interval Detail
101/Harris
101-909/North Forest ISD

Category Summary

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

Stratum
Variance
A 368,467,625 1.0288 358,152,824 17 7,683 .065295544
A 184,790,621 0.9658 191,334,252 24 2,835 .047302673
A 79,644,261 1.0705 74,399,123 7 988 .053367324
A 132,577,118 1.0520 126,023,876 18 1,043 .019116909
F1 53,628,015 0.8694 61,683,937 7 320 .015792727
F1 67,094,892 0.9597 69,912,360 6 75 .003187885
F1 57,090,548 0.9652 59,148,931 6 16 .006142124
F1 53,579,638 0.9778 54,796,112 3 6 .000364362
L1 33,945,878 0.8913 38,085,805 8 217 .005890724
L1 42,778,937 0.8896 48,087,834 6 30 .029400432
L1 43,856,624 0.8764 50,041,789 4 12 .015421602
Random Totals: 1,117,454,157   1,131,666,843 106 13,225  
Catg D1 Exception Values: 291,585   266,814      
Catg L1 Exception Values: 27,704,045   26,827,508      
Total Test Values (4): 1,145,449,787   1,158,761,165      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,938,058

Confidence Interval Values (5)

State Lower Limit: 1,100,823,107 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,145,449,787 (Within Confidence Interval)
State Upper Limit: 1,216,699,223 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,624,751,684 (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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