A univariate hypothesis test using the t distribution, which is used when the standard deviation is unknown and the sample size is small, is called the z-test

Which of the following is a variable cost?

A) property taxes B) salary of plant manager C) direct materials cost D) straight-line depreciation expense

A best practice by which salespeople can use technology to strengthen relationships with customers is by:

A) allowing customers to cancel orders without having to talk to a person B) sending email confirmations of appointments or agreements C) sending form letters with business cards through the mail D) placing automated prerecorded phone calls to customers on a programmed schedule E) faxing large numbers of sales letters to potential leads