If you are interested in estimating the difference between the means of two samples that have been paired, the point estimate for this difference is the mean value of the paired differences

Contingency management requires managers to adapt to the local environment and people, and to manage accordingly

Indicate whether the statement is true or false

Which of the following is a characteristic of e-tailing?

A) Competition is local. B) Customer relations are less stable due to anonymous contacts. C) Price changes are expensive, but can be done at anytime. D) Fewer resources are needed to increase customer loyalty.