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187/Polk
2017 Confidence Interval Detail
187/Polk
187-901/Big Sandy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,451,257 | 0.9694 | 9,749,595 | 13 | 259 | .043992210 |
| A | 9,141,462 | 0.9595 | 9,527,318 | 11 | 131 | .013678456 |
| A | 10,529,463 | 1.0023 | 10,505,301 | 9 | 100 | .019677127 |
| A | 12,042,456 | 1.0388 | 11,592,661 | 9 | 67 | .004003260 |
| E | 24,618,718 | 1.0687 | 23,036,135 | 20 | 386 | .170110655 |
| G1 | 37,630,220 | 0.9736 | 38,650,596 | 15 | 29 | .017168022 |
| G1 | 39,091,470 | 1.0065 | 38,839,016 | 8 | 9 | .002325455 |
| Random Totals: | 142,505,046 | 141,900,622 | 85 | 981 | ||
| Catg J Exception Values: | 4,060,380 | 3,254,070 | ||||
| Catg D1 Exception Values: | 20,089,349 | 20,787,482 | ||||
| Catg G1 Exception Values: | 71,546,580 | 73,039,951 | ||||
| Total Test Values (4): | 238,201,355 | 238,982,125 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 11,949,106 |
Confidence Interval Values (5)
| State Lower Limit: | 227,033,019 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 238,201,355 | (Within Confidence Interval) |
| State Upper Limit: | 250,931,231 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 266,952,889 | (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, 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
(6) Includes local value of unstudied property categories and sub-categories