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2008 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 433,783,396 0.9143 474,443,176 78 10,315 .047150841
A 456,746,967 0.9560 477,768,794 82 6,199 .017952572
A 496,025,950 1.0117 490,289,562 80 4,330 .013600818
A 553,116,039 0.9582 577,244,875 80 2,287 .026648911
B 85,920,768 1.0112 84,969,114 22 559 .007714944
B 83,079,989 0.9310 89,237,367 7 100 .013944485
B 86,035,987 1.0085 85,310,845 5 27 .004233230
B 93,898,938 0.9900 94,847,412 4 9 .000399725
F1 241,810,499 1.0413 232,219,820 13 989 .011826765
F1 253,765,984 1.0394 244,146,608 8 246 .024638788
F1 270,903,409 1.0147 266,978,820 6 87 .019845544
F1 240,471,361 0.9478 253,715,300 5 19 .013229104
L1 129,223,718 0.9757 132,442,060 7 1,230 .001234420
L1 125,112,591 0.9968 125,514,237 7 256 .001256270
L1 120,289,296 1.0033 119,893,647 6 87 .000368804
L1 178,548,600 0.9942 179,590,223 5 29 .000764513
Random Totals: 3,848,733,492   3,928,611,860 415 26,769  
Catg D1 Exception Values: 1,117,396   1,002,788      
Total Test Values (4): 3,849,850,888   3,929,614,648      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 196,480,732

Confidence Interval Values (5)

State Lower Limit: 3,733,133,916 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,849,850,888 (Within Confidence Interval)
State Upper Limit: 4,126,095,380 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,559,813,859 (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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