In employee selection, a variable used to select a successful job candidate is referred to as a ; this is any piece of information that we are able to measure about job applicants and that are related to measures of job success.

At cooly cola, we are testing the appeal of our new diet one cola. in a taste test of 250 randomly chosen cola drinkers, 200 consumers preferred diet one cola to the leading brand. assuming that the sample were large enough, the large-sample 95% confidence interval for the population proportion of cola drinkers that prefer diet one cola would be: