2011 Confidence Interval Detail
072/Erath
072-904/Bluff Dale ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 7,654,050 | 1.0179 | 7,519,452 | 10 | 91 | .006813314 |
| A | 7,657,860 | 0.9369 | 8,173,615 | 10 | 45 | .006345818 |
| A | 7,566,770 | 0.9497 | 7,967,537 | 10 | 35 | .008512070 |
| A | 8,092,640 | 0.9785 | 8,270,455 | 10 | 28 | .006025037 |
| C | 5,643,750 | 0.9149 | 6,168,707 | 11 | 351 | .037209829 |
| C | 5,000,700 | 1.0076 | 4,962,981 | 13 | 239 | .037793858 |
| C | 6,676,630 | 1.0213 | 6,537,384 | 12 | 221 | .065051821 |
| C | 3,588,840 | 1.0364 | 3,462,794 | 12 | 78 | .008476226 |
| D3 | 30,539,620 | 1.0063 | 30,348,425 | 24 | 740 | .045498090 |
| G1 | 2,518,140 | 0.9961 | 2,527,999 | 9 | 23 | .129756472 |
| Random Totals: | 84,939,000 | 85,939,349 | 121 | 1,851 | ||
| Catg J Exception Values: | 5,850,868 | 5,847,212 | ||||
| Catg D1 Exception Values: | 3,567,310 | 3,266,881 | ||||
| Total Test Values (4): | 94,357,178 | 95,053,442 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,752,672 |
Confidence Interval Values (5)
| State Lower Limit: | 90,300,770 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 94,357,178 | (Within Confidence Interval) |
| State Upper Limit: | 99,806,114 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 117,990,501 | (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