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2007 Confidence Interval Detail
093/Grimes
093-905/Richards ISD

Category Summary

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

Stratum
Variance
A 1,444,422 1.0279 1,405,216 6 57 .004516855
A 1,423,484 0.9232 1,541,902 6 26 .029572192
A 1,461,139 1.0435 1,400,229 5 16 .006384625
A 1,308,443 0.9978 1,311,328 4 9 .039021959
D3 14,996,160 1.0511 14,267,111 20 642 .019964624
G1 28,748,916 0.9765 29,440,774 20 27 .010772810
Random Totals: 49,382,564   49,366,560 61 777  
Catg J Exception Values: 5,343,710   5,125,365      
Catg D1 Exception Values: 2,162,053   2,121,196      
Total Test Values (4): 56,888,327   56,613,121      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,830,656

Confidence Interval Values (5)

State Lower Limit: 53,782,465 (State Test Value minus Margin of Error Percent)
Local Test Value: 56,888,327 (Within Confidence Interval)
State Upper Limit: 59,443,777 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 64,074,884 (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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