When the future level of some variable is seen as a function of something other than time, the best forecasting models to use are such as linear regression.
a. unselected qualitative techniques
b. unselected quantitative forecasting models
c. unselected time series models
d. unselected causal models
e. unselected i don't know yet

The purchasing agent for a company that assembles and sells air-conditioning equipment in a latin american country noted that the cost of compressors has increased significantly each time they have been reordered. the company uses an eoq model to determine order size. what are the implications of this price escalation with respect to order size? what factors other than price must be taken into consideration?

Management training programs, mentoring programs, and coaching systems are examples of

In a high school with 3000 students, counselors are putting together a math tutoring program for the neighboring middle school. they plan to invite high school students with high average test scores to tutor middle school students, and they would like to offer gift cards to the student tutors. the counselors have a spreadsheet showing each student’s average test scores, and in order to find out how many gift cards they should purchase, the counselors need to count how many students would qualify to become tutors. which type of function would best the counselors determine the number of eligible students?