2007 Confidence Interval Detail
072/Erath
072-910/Morgan Mill ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,457,367 | 1.1141 | 1,308,111 | 6 | 36 | .005705653 |
| A | 1,435,088 | 1.1374 | 1,261,727 | 5 | 22 | .005998167 |
| A | 1,484,251 | 1.0929 | 1,358,085 | 5 | 17 | .006327512 |
| A | 1,318,835 | 1.0835 | 1,217,199 | 6 | 9 | .015119234 |
| D3 | 39,098,970 | 0.9631 | 40,596,999 | 10 | 1,037 | .066792635 |
| G1 | 1,658,300 | 0.8606 | 1,926,911 | 5 | 19 | .005501099 |
| G1 | 1,764,760 | 0.9869 | 1,788,185 | 4 | 9 | .006903882 |
| G1 | 1,651,250 | 0.9629 | 1,714,872 | 3 | 5 | .030006773 |
| G1 | 1,322,430 | 0.8973 | 1,473,788 | 2 | 3 | .002511604 |
| Random Totals: | 51,191,251 | 52,645,877 | 46 | 1,157 | ||
| Catg J Exception Values: | 1,443,427 | 1,326,383 | ||||
| Catg D1 Exception Values: | 4,394,910 | 3,632,927 | ||||
| Total Test Values (4): | 57,029,588 | 57,605,187 |
Margin of Error
| Margin of Error Percent: | 11.6199779 |
|---|---|
| Margin of Error Value: | 6,693,710 |
Confidence Interval Values (5)
| State Lower Limit: | 50,911,477 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 57,029,588 | (Within Confidence Interval) |
| State Upper Limit: | 64,298,897 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 56,436,946 | (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