Special Notice: The Text version of the Advanced Monthly Sales and Retail and Food Services (MARTS) release will not be available beginning with the November 2012 MARTS release on December 13, 2012. However, the release will continue to be available in PDF and Excel formats at http://www.census.gov/retail Table 3. Estimated Measures of Sampling Variability and Revision to Advance Estimates--August 2012 (Estimates are shown as percents and are based on data from the Advance Monthly Retail Trade Survey and Monthly Retail Trade Survey) Median standard error(1) for Revision for month- Percent change to-month change (2) Median NAICS Code Kind of Business CV (1) for Previous Mo. Previous Qtr. Current Mo. Median Current Mo. to to to same Average absolute (%) Current Mo. Current Qtr. Mo. Last Yr. revision revision Retail & food services, total ....................................... 0.8 0.3 0.2 0.4 0.0 0.2 Total (excl. motor vehicle & parts) ......... 0.7 0.3 0.2 0.4 0.0 0.1 Retail ................................... 0.9 0.3 0.2 0.4 0.0 0.1 441 Motor vehicle & parts dealers ................. 2.5 1.0 0.5 1.3 0.0 0.4 4411, 4412 Auto & other motor veh. dealers ........... 2.6 1.0 0.6 1.5 0.0 0.4 442 Furniture & home furn. stores ................. 3.1 1.3 0.8 1.8 0.4 0.4 443 Electronics & appliance stores ................ 1.5 0.6 0.5 1.0 -0.6 0.5 444 Building material & garden eq. & supplies dealers ............................ 3.3 1.6 1.0 2.2 0.0 0.5 445 Food & beverage stores ........................ 1.2 0.2 0.3 0.5 -0.1 0.1 4451 Grocery stores ......................... 1.3 0.2 0.3 0.5 -0.1 0.2 446 Health & personal care stores ................. 1.7 0.3 0.3 0.8 -0.1 0.3 447 Gasoline stations ............................. 2.5 0.5 0.4 1.0 -0.2 0.5 448 Clothing & clothing accessories stores ...................................... 2.8 0.6 0.6 0.8 0.1 0.3 451 Sporting goods, hobby, book & music stores ................................ 4.9 1.6 1.4 2.8 0.0 0.7 452 General merchandise stores .................... 0.5 0.1 0.1 0.3 -0.2 0.1 4521 Department stores (ex. L.D.) ........... 0.0 0.0 0.0 0.0 -0.2 0.1 453 Miscellaneous store retailers ................. 3.6 2.4 1.5 3.0 0.3 0.7 454 Nonstore retailers ............................ 2.2 1.0 0.6 1.9 0.3 0.3 722 Food services & drinking places ............... 2.1 0.7 0.5 1.1 0.1 0.3 (1) Estimated measures of sampling variability are based on estimates not adjusted for seasonal variation or holiday or trading-day differences. Medians are based on estimates for the most recent 12 months. (2) These columns provide measures of the difference between the advance-to-preliminary and preliminary-to-final estimates of month-to-month change for the same pair of months as measured by the Advance sample and MRTS sample. The average and median revisions are based on estimates for the most recent 12 months. Note: Additional information on confidentiality protection, sampling error, nonsampling error, sample design, and definitions may be found at http://www.census.gov/retail Source: U.S Census Bureau Service Sector Statistics Division Last revised: September 14, 2012