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2008 Confidence Interval Detail
150/Llano
150-901/Llano ISD

Category Summary

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

Stratum
Variance
A 486,286,449 0.9532 510,162,032 62 3,855 .009522844
A 483,979,663 0.9637 502,209,882 53 1,500 .007794429
A 525,045,238 0.9504 552,446,589 34 959 .008430180
A 577,598,460 0.9253 624,228,315 15 485 .016171536
C 68,035,471 0.8436 80,648,970 51 5,176 .110949287
C 82,716,250 0.9826 84,180,999 60 1,768 .005224380
C 72,921,290 0.9867 73,904,216 42 380 .009340827
C 95,934,310 0.9921 96,698,226 23 182 .014135267
D3 141,235,412 0.9242 152,819,100 34 7,082 .120365060
F1 35,903,355 0.8092 44,368,951 9 320 .069830426
F1 39,754,390 0.8522 46,649,132 7 120 .039127194
F1 36,859,390 0.9392 39,245,517 6 33 .002248333
F1 45,331,450 1.0364 43,739,338 2 5 .005779003
Random Totals: 2,691,601,128   2,851,301,267 398 21,865  
Catg D1 Exception Values: 35,600,810   40,385,868      
Total Test Values (4): 2,727,201,938   2,891,687,135      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 144,584,357

Confidence Interval Values (5)

Local Test Value: 2,727,201,938 (Outside Confidence Interval)
State Lower Limit: 2,747,102,778 (State Test Value minus Margin of Error Percent)
State Upper Limit: 3,036,271,492 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,625,145,615 (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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