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2010 Confidence Interval Detail
043/Collin
043-907/McKinney ISD

Category Summary

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

Stratum
Variance
A 1,462,978,260 0.9610 1,522,349,906 50 10,258 .020447297
A 1,432,343,596 0.9928 1,442,731,261 49 7,289 .002784251
A 1,492,016,153 0.9926 1,503,139,384 49 5,329 .003447360
A 1,366,524,826 0.9865 1,385,225,368 50 2,888 .006735748
B 84,334,105 0.6951 121,326,579 8 49 .097591594
B 96,640,794 0.8857 109,112,334 7 10 .017838902
B 50,900,000 0.8276 61,503,142 2 2 .029116433
D3 223,025,514 0.9817 227,182,962 22 2,745 .031398621
F1 321,379,991 0.9495 338,472,871 10 326 .010421113
F1 287,648,599 1.0133 283,873,087 9 108 .009627111
F1 295,498,721 0.9057 326,265,564 10 41 .047838694
F1 340,369,803 1.0116 336,466,788 6 14 .000299584
L1 196,773,503 0.9872 199,324,861 10 532 .006382218
L1 229,377,427 0.9551 240,160,640 8 41 .003440085
L1 248,334,336 0.9463 262,426,647 5 9 .022620999
Random Totals: 8,128,145,628   8,359,561,394 295 29,641  
Catg J Exception Values: 94,542,265   104,511,796      
Catg D1 Exception Values: 4,983,789   4,934,048      
Catg B Exception Values: 88,011,085   87,226,759      
Catg L1 Exception Values: 140,016,055   152,478,974      
Total Test Values (4): 8,455,698,822   8,708,712,971      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 435,435,649

Confidence Interval Values (5)

State Lower Limit: 8,273,277,322 (State Test Value minus Margin of Error Percent)
Local Test Value: 8,455,698,822 (Within Confidence Interval)
State Upper Limit: 9,144,148,620 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 8,874,739,236 (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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