Christmas and New Year’s Holiday Hours

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2007 Confidence Interval Detail
090/Gray
090-902/Lefors ISD

Category Summary

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

Stratum
Variance
A 5,677,030 0.9534 5,954,510 20 331 .035906327
G1 24,902,918 0.8032 31,004,629 15 88 .354282148
G1 24,727,438 1.0382 23,817,605 15 22 .165607097
G1 28,794,490 1.0637 27,070,123 9 10 .018088682
Random Totals: 84,101,876   87,846,867 59 451  
Catg J Exception Values: 1,182,311   1,167,168      
Catg D1 Exception Values: 2,250,300   3,248,409      
Catg G1 Exception Values: 19,492,651   20,124,313      
Total Test Values (4): 107,027,138   112,386,757      

Margin of Error

Margin of Error Percent: 8.1617623
Margin of Error Value: 9,172,740

Confidence Interval Values (5)

State Lower Limit: 103,214,017 (State Test Value minus Margin of Error Percent)
Local Test Value: 107,027,138 (Within Confidence Interval)
State Upper Limit: 121,559,497 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 125,199,008 (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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