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039/Clay
2018 Confidence Interval Detail
039/Clay
039-903/Petrolia CISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 17,089,790 | 0.7272 | 23,500,811 | 18 | 378 | .222482413 |
| A | 19,210,920 | 0.9238 | 20,795,540 | 14 | 218 | .037875351 |
| A | 16,924,760 | 0.9750 | 17,358,728 | 16 | 123 | .022879046 |
| A | 20,653,240 | 1.0313 | 20,026,413 | 14 | 96 | .004230216 |
| E | 32,345,900 | 0.7960 | 40,635,553 | 19 | 516 | .099525793 |
| Random Totals: | 106,224,610 | 122,317,045 | 81 | 1,331 | ||
| Catg J Exception Values: | 13,413,470 | 14,631,988 | ||||
| Catg D1 Exception Values: | 14,005,300 | 12,994,370 | ||||
| Total Test Values (4): | 133,643,380 | 149,943,403 |
Margin of Error
| Margin of Error Percent: | 5.3754796 |
|---|---|
| Margin of Error Value: | 8,060,177 |
Confidence Interval Values (5)
| Local Test Value: | 133,643,380 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 141,883,226 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 158,003,580 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 135,631,186 | (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