There is a bewildering number of breakfast cereals on the market. Each company produces several different products in the belief that there are distinct markets. For example, there is a market composed primarily of children, another for diet-conscious adults, and another for health-conscious adults. Each cereal the companies produce has at least one market as its target. However, consumers make their own decisions, which may or may not match the target predicted by the cereal maker.

In an attempt to distinguish between consumers, a survey of adults between the ages of 25 and 65 was undertaken. Each was asked several questions, including age, income, and years of education, as well as which brand of cereal they consumed most frequently. The cereal choices are

1. Sugar Smacks, a children’s cereal

2. Special K, a cereal aimed at dieters

3. Fiber One, a cereal that is designed and advertised as healthy

4. Cheerios, a combination of healthy and tasty

The results of the survey were recorded using the following format:

Column 1: Cereal choice

Column 2: Age of respondent

Column 3: Annual household income

Column 4: Years of education

a. Determine whether there are differences between the ages of the consumers of the four cereals.

b. Determine whether there are differences between the incomes of the consumers of the four cereals.

c. Determine whether there are differences between the educational levels of the consumers of the four cereals.

d. Summarize your findings in parts (a) through (c) and prepare a report describing the differences between the four groups of cereal consumers.