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2009 Confidence Interval Detail
093/Grimes
093-904/Navasota ISD

Category Summary

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

Stratum
Variance
A 63,673,399 1.0087 63,124,218 15 1,300 .019334209
A 63,791,599 0.9552 66,783,500 9 719 .014845325
A 63,731,040 0.9345 68,198,010 12 485 .005944884
A 68,774,440 0.9542 72,075,498 9 311 .001314796
C 10,906,484 0.9253 11,786,971 13 2,184 .013943970
C 13,358,340 0.9815 13,610,127 17 627 .007740375
C 8,830,400 0.9331 9,463,509 13 213 .016377510
C 7,959,550 0.9492 8,385,535 14 127 .017494389
D3 208,227,513 0.9521 218,703,406 37 5,613 .016776024
F1 14,909,475 0.9146 16,301,635 7 194 .005381669
F1 15,662,800 0.9468 16,542,881 6 55 .020974904
F1 14,491,220 0.9100 15,924,418 5 21 .009016842
F1 18,849,803 0.8601 21,915,827 4 11 .025105284
Random Totals: 573,166,063   602,815,535 161 11,860  
Catg J Exception Values: 39,070,240   39,559,494      
Catg D1 Exception Values: 12,235,262   11,961,686      
Total Test Values (4): 624,471,565   654,336,715      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 32,716,836

Confidence Interval Values (5)

State Lower Limit: 621,619,879 (State Test Value minus Margin of Error Percent)
Local Test Value: 624,471,565 (Within Confidence Interval)
State Upper Limit: 687,053,551 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,096,315,053 (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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