Dallas Airline has a need for about 100 new flight attendants per month as replacements for those who leave. Trainees are put through a two-month school. The fixed cost of running one session of this school is $150,000. Any number of sessions can be run during the year but must be scheduled so that the airline always has enough flight attendants. The cost of having excess attendants is simply the salary that they receive, which is $15,000 per month. How many sessions of the school should Dallas Airline run each year, and how many flight attendants should be in each session

Total marketing effort is a term used to describe the critical decision factors that affect demand: price, advertising, distribution, and product quality. define the variable x to represent total marketing effort. a typical model that is used to predict demand as a function of total marketing effort is based on the power function: d = axb suppose that a is a positive number. different model forms result from varying the constant b. sketch the graphs of this model for b = 0, b = 1, 0< b< 1, b< 0, and b> 1. (we encourage you to use excel to do this.) what does each model tell you about the relationship between demand and marketing effort? what assumptions are implied? are they reasonable? how would you go about selecting the appropriate model?