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2009 Confidence Interval Detail
126/Johnson
126-904/Grandview ISD

Category Summary

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

Stratum
Variance
A 21,500,465 0.9610 22,373,012 9 370 .045353682
A 20,742,946 1.0364 20,014,421 9 229 .088296614
A 21,874,842 0.9543 22,922,395 8 164 .004094750
A 22,833,485 0.9526 23,969,646 8 116 .001501708
D3 85,654,527 0.9313 91,973,077 12 1,838 .031323679
G1 34,558,834 0.9144 37,794,000 8 42 .102174293
G1 35,062,102 0.9282 37,774,296 6 22 .035326527
G1 34,191,625 1.0692 31,978,699 6 15 .006752024
G1 31,759,147 0.9974 31,841,936 5 10 .002178359
Random Totals: 308,177,973   320,641,482 71 2,806  
Catg J Exception Values: 9,388,134   9,981,028      
Catg D1 Exception Values: 4,114,972   3,928,493      
Total Test Values (4): 321,681,079   334,551,003      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,727,550

Confidence Interval Values (5)

State Lower Limit: 317,823,453 (State Test Value minus Margin of Error Percent)
Local Test Value: 321,681,079 (Within Confidence Interval)
State Upper Limit: 351,278,553 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 363,504,159 (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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