Are the Survey Results Statistically Significant?
Because the statistics published in this report are based on a sample of all residential housing units in the 50 States and the District of Columbia as of November 1993, the values are estimates rather than exact measures for the population. Certain estimates in these tables are suppressed due to large error levels or few sample observations. (See table footnotes for explanation.) Each table in the “Detailed Tables” section includes row and column relative standard error (RSE) factors to be used in calculating RSEs for individual table entries. Unless stated otherwise, all comparisons reported in the text are statistically significant, based on a standard test made at the 0.05 significance level. These tests were made using the actual RSE’s computed by EIA. No adjustments were made for simultaneous inference. How Is This Report Organized? A discussion of the highlights of survey findings, featuring tables and figures that present information of special interest or that provide a finer
