Chapter 1: Introduction and Data Collection
CHAPTER 1
1.1
(a)
The types of beverages sold yield categorical or “qualitative” responses.
(b)
The types of beverages sold yield distinct categories in which no ordering is implied.
1.2
Three sizes of soft drink are classified into distinct categories—small, medium, and large—
in which order is implied.
1.3
(a)
The time it takes to download an MP3 file from the Internet yields numerical or
“quantitative” responses.
(b)
The download time is a ratio scaled variable because the true zero point in the
measurement is zero units of time.
1.4
(a)
numerical, discrete, ratio scale
(b)
numerical, continuous, ratio scale
(c)
categorical, nominal scale
(d)
categorical, nominal scale
1.5
(a)
numerical, continuous, ratio scale
(b)
numerical, discrete, ratio scale
(c)
categorical, nominal scale
(d)
categorical, nominal scale
1.6
(a)
categorical, nominal scale
(b)
numerical, continuous, ratio scale
(c)
numerical, discrete, ratio scale
(d)
numerical, discrete, ratio scale
1.7
(a)
numerical, continuous, ratio scale *
(b)
categorical, nominal scale
(c)
categorical, nominal scale
(d)
numerical, discrete, ratio scale
*Some researchers consider money as a discrete numerical variable because it can be
“counted.”
1.8
(a)
numerical, continuous, ratio scale *
(b)
numerical, discrete, ratio scale
(c)
numerical, continuous, ratio scale *
(d)
categorical, nominal
*Some researchers consider money as a discrete numerical variable because it can be
“counted.”
1.9
(a)
Income may be considered discrete if we “count” our money. It may be considered
continuous if we “measure” our money; we are only limited by the way a country's
monetary system treats its currency.
(b)