Relational databases are heavily based on the mathematical concept of:

What is imputed interest?

a. Interest based on the stated interest rate. b. Interest based on the implicit interest rate. c. Interest based on the average interest rate. d. Interest based on the coupon rate.

Bonneville Communications is concerned about test marketing its new device. Which of the following is NOT a disadvantage of test marketing that would likely concern Bonneville Communications?

A) Test marketing costs can be high. B) Test markets give competitors a peek at the company's promotional strategy. C) Test marketing allows time for competitors to gain advantages. D) People who are surveyed tend to tell less than the truth. E) Test marketing does not guarantee success.