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2009 Confidence Interval Detail
198/Robertson
198-903/Franklin ISD

Category Summary

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

Stratum
Variance
D3 111,490,080 0.6500 171,523,200 19 4,477 .086263089
G1 573,711,731 1.0167 564,288,119 7 323 .014220256
G1 579,409,312 1.0125 572,256,111 6 63 .043759562
G1 588,798,847 1.0173 578,785,852 5 22 .005040632
G1 541,772,224 1.0012 541,122,877 4 8 .001889643
Random Totals: 2,395,182,194   2,427,976,159 41 4,893  
Catg D1 Exception Values: 12,957,480   13,831,071      
Total Test Values (4): 2,408,139,674   2,441,807,230      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 122,090,362

Confidence Interval Values (5)

State Lower Limit: 2,319,716,868 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,408,139,674 (Within Confidence Interval)
State Upper Limit: 2,563,897,592 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,491,437,359 (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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