taxes Property Tax Assistance

2018 Confidence Interval Detail

156/Martin
156-905/Grady ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
G1 373,664,330 0.9586 389,802,139 14 246 0.023611731
G1 382,124,099 1.0143 376,736,763 14 29 0.001100588
G1 374,904,833 1.0177 368,384,429 4 9 0.000251277
Random Totals: 1,130,693,262 1,134,923,331 32 284
CATG D1 EXCEPTION VALUES: 7,520,450 13,350,726
CATG G1 EXCEPTION VALUES: 351,241,933 353,063,281
CATG J EXCEPTION VALUES: 7,014,570 7,913,790
Total Test Values(3) 1,496,470,215 1,509,251,128

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 75,462,556

Confidence Interval Values(5)

Local Test Value: 1,496,470,215 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,433,788,572 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,584,713,684 (State Test Value plus Margin of Error Percent)

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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values