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2007 Confidence Interval Detail
236/Walker
236-901/New Waverly ISD

Category Summary

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

Stratum
Variance
A 14,590,443 1.0371 14,068,502 7 353 .082120045
A 14,558,365 0.9408 15,474,453 7 203 .032803286
A 14,579,835 0.8994 16,210,624 8 139 .003365344
A 14,486,083 0.9626 15,048,912 7 77 .021129979
C 8,225,179 0.6869 11,974,347 8 529 .154039134
C 2,187,969 0.9960 2,196,756 7 69 .043844677
C 3,141,487 0.9299 3,378,306 9 74 .076932387
C 3,698,329 1.0140 3,647,267 6 56 .015692958
D3 68,352,180 0.8773 77,911,980 20 1,921 .089687916
Random Totals: 143,819,870   159,911,147 79 3,421  
Catg J Exception Values: 7,172,336   6,923,261      
Catg D1 Exception Values: 5,685,430   5,329,504      
Total Test Values (4): 156,677,636   172,163,912      

Margin of Error

Margin of Error Percent: 6.7286302
Margin of Error Value: 11,584,273

Confidence Interval Values (5)

Local Test Value: 156,677,636 (Outside Confidence Interval)
State Lower Limit: 160,579,639 (State Test Value minus Margin of Error Percent)
State Upper Limit: 183,748,185 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 172,995,061 (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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