A nutritionist at the Food and Drug Administration is studying the effects of cereal marketing on family meal choices. In particular, she would like to
understand how cereal manufacturers market their products in grocery
stores. She became interested in doing this study after noticing how the
cereal was being restocked one day in her local grocery store. The store
personnel were restocking the cereal shelves based on a reference sheet
that told them where everything was to be placed. The placement of each
cereal brand seemed very deliberate.
To gather data for her study, the nutritionist goes to the local grocery store
and records data about cereal nutritional claims and shelf location for 77
cereals.
1. Consider the variables in the data set. Identify the variables that are
qualitative and those that are quantitative.
Qualitative data consist of attributes, labels, or non-numerical entries
Quantitative data consist of numerical measurements or counts
2. Consider the variable Shelf. This variable is the shelf position of the cereal
(bottom, middle, top) starting from the floor up. Based on your experience at
the grocery store, do you think that the shelf position is related to the
nutritional content of the cereal? Why or why not?