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2009 Confidence Interval Detail
161/McLennan
161-914/Waco ISD

Category Summary

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

Stratum
Variance
A 481,633,793 0.9921 485,468,998 63 10,665 .031813304
A 475,815,806 0.9812 484,932,538 61 5,985 .017813203
A 471,850,935 0.9961 473,698,359 64 3,793 .023945455
A 486,450,441 0.9799 496,428,657 63 1,836 .039462180
B 89,139,362 1.0279 86,719,877 18 555 .016640715
B 88,856,898 1.0637 83,535,675 7 96 .010430010
B 86,383,245 0.9813 88,029,395 5 26 .000622839
B 109,171,080 0.8974 121,652,641 4 11 .013131651
F1 257,844,410 0.9755 264,320,256 12 978 .042780892
F1 260,459,262 0.9915 262,692,145 7 238 .014318894
F1 272,010,307 0.9738 279,328,719 6 88 .002101383
F1 284,713,172 0.9533 298,660,623 5 22 .002382204
L1 136,421,301 0.9843 138,597,278 7 1,175 .005102175
L1 130,159,007 1.0004 130,106,964 7 229 .001141812
L1 124,210,143 0.9831 126,345,380 6 74 .001448093
L1 148,854,736 0.9995 148,929,201 5 20 .000390762
Random Totals: 3,903,973,898   3,969,446,706 340 25,791  
Catg D1 Exception Values: 1,138,747   1,101,901      
Total Test Values (4): 3,905,112,645   3,970,548,607      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 198,527,430

Confidence Interval Values (5)

State Lower Limit: 3,772,021,177 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,905,112,645 (Within Confidence Interval)
State Upper Limit: 4,169,076,037 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,675,152,054 (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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