Class 1-Introduction Homework
• Read Chapter 1: pages 2 thru 17 in Black
• Answer questions 1.6 & 1.7 on page 14
• Answer questions 1 and 2 on page 17 for the
DiGiorno Pizza Case Study
1.6)
a) The ranking of a company by Fortune 500
Ordinal
b) The number of tickets sold at a movie theater in any given night
Ratio
c) The identification number on a questionnaire
Nominal
d) Per capita income
Ratio
e) The trade balance in dollars
Interval
f) Socioeconomic class (low, middle, upper)
Ordinal
g) Profit/loss in dollars
Interval
h) A company’s tax ID
Nominal
i) The Standard and Poor’s bond ratings of cities based on the given scales
Ordinal
1.7)
a. ~900
b. 35
c. Satisfaction Survey
d. Satisfaction with Rathburn’s Wire
Page 17
Question 1
Kids would be a key population because although women were the main population, kids would
be the ones most likely to be eating the pizza after it was cooked.
Contacting an entire population would be difficult because there are too many people in the US to contact
about a new product. Instead, women were selected because they would be the ones most likely to be
making dinner for themselves, kids or families.
Kraft used the data from the sample of women to predict how the entire nation would respond to this new
type of frozen pizza. Descriptive statistics that could be used would be like overall sales of carry-out
places or fast food places in the US, to measure how often people would go pick up their food rather than
cook.
a. Ratio
b. Interval
c. Nominal
d. Ratio
e. Interval
f. Interval
g. Ordinal
