Consider the MSA marketing research example discussed in Section 3.3 (page 74) of Chapter 3. Use the Sensitivity Report for this LP model (shown in Screenshot 4-7 on page 150) to answer the following questions. Each question is independent of the others.
(a) What is the maximum unit cost that will make it worthwhile to include in the survey persons 30 years of age or younger who live in a border state?
(b) What is the impact if MSA wants to increase the sample size to 3,000?
(c)What is the impact if MSA insists on including people 31-50 years of age who do not live in a border state?
(d) What is the impact if we can reduce the minimum 30 or younger persons required to 900, provided that we raise the persons 31-50 years of age to 650?