In market research, the standard error (SE) is the estimated standard deviation of the sampling distribution of a statistic. It indicates the reliability of the mean, by showing how accurately a sample represents the total population. In statistics, any sample mean deviates from the actual mean of a population, and the standard error tells us how confident we can be in the observed sample mean. A larger sample size usually results in a smaller standard error.
Interstitial
In online advertising, an interstitial is an ad that is displayed before or after the expected content. For example, if