Estimates based on the assumption that historical data can be used as a frame of reference for current estimates are:

If a nonsmoker dines in a restaurant without a no-smoking section, then the overall quality of service experienced by the nonsmoking customer probably declines. This is an example of which of the following service characteristics?

a) Perishability b) Inseparability c) Heterogeneity d) Intangibility e) Homogeneity

ECC stands for ________

A) enhanced communications control B) end communications center C) error correcting code D) error control code