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2007 Confidence Interval Detail
091/Grayson
091-917/Gunter ISD

Category Summary

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

Stratum
Variance
A 23,276,830 0.9307 25,010,025 13 266 .042914911
A 23,408,018 0.9302 25,164,500 10 139 .023225644
A 23,234,567 1.0157 22,875,423 13 91 .008103820
A 23,128,653 0.9629 24,019,787 10 57 .003744817
C 3,083,503 0.9367 3,291,879 11 110 .047588476
C 3,079,573 1.1579 2,659,619 7 67 .020515375
C 3,124,403 0.9727 3,212,093 7 55 .030936596
C 3,028,958 0.9680 3,129,089 7 32 .002657296
D3 37,658,742 0.9737 38,675,919 21 1,120 .004017675
Random Totals: 143,023,247   148,038,334 99 1,937  
Catg D1 Exception Values: 5,466,091   4,038,154      
Total Test Values (4): 148,489,338   152,076,488      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,603,824

Confidence Interval Values (5)

State Lower Limit: 144,472,664 (State Test Value minus Margin of Error Percent)
Local Test Value: 148,489,338 (Within Confidence Interval)
State Upper Limit: 159,680,312 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 158,702,357 (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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