CHAPTER 1—DATA AND STATISTICS
MULTIPLE CHOICE1.In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the
a. ordinal scale of measurement
b. nominal scale of measurement
c. ratio scale of measurement
d. interval scale of measurement
2.Some hotels ask their guests to rate the hotel's services as excellent, very good, good, and poor. This is an example of the
a. ordinal scale of measurement
b. ratio scale of measurement
c. nominal scale of measurement
d. interval scale of measurement 3.Income is an example of a variable that uses the
a. ratio scale of measurement
b. interval scale of measurement
c. nominal scale of measurement
d. ordinal scale of measurement
4.The scale of measurement that has an inherent zero value defined is the
a. ratio scale
b. nominal scale
c. ordinal scale
d. interval scale
5.Data that can be grouped by specific categories are referred to as
a. quantitative data
b. ratio scale data
c. categorical data
d. interval scale data
6.The entities on which data are collected are
a. elementsb. populationsc. samplesd. None of these alternatives is correct.
7.The set of measurements collected for a particular element is called
a. variableb. observationc. sampled. None of these alternatives is correct.
8.A characteristic of interest for the elements is called a(n)
a. sampleb. data set
c. variabled. None of these alternatives is correct.
9.What of the following is true for categorical data?
a. can be grouped into some specific categories
b. use either nominal or ordinal scale of measurement
c. might assume numerical values but these values are codes assigned to the categories
d. all of the above
10.What of the following is not true for quantitative data?
a. They are always numeric
b. They use either interval or ratio scale of measurement
c. They are only useful in the branch of Inferential Statistics
d. Their numeric values indicate how much or how many
11.A portion of the population selected to represent it is called
a. Descriptive Statistics
b. Inferential Statistics
c. a census
d. a sample
12.Data collected at the same, or approximately the same, point in time are
a. time series data
b. approximate time series data
c. cross-sectional data
d. approximate data
13.Data collected over several time periods are
a. time series data
b. time controlled data
c. cross-sectional data
d. time cross-sectional data
14. In Statistics sampling is used, in particular, to apply computers in statistical studies conduct tests concerning something of interest in the sample estimate something of interest in the sample estimate something of interest in the population
Exhibit 1-1
Part of the data bank of a corporation is shown below.
Employee
Name Employee SS Number Department Aptitude
Test Result Employee Rank Yearly Salary
Smith, Jacob 234-50-7612 Accounting 75 Good $ 52,443.28
Brown, Anne 345-68-7101 IT 85 Excellent $111,239.92
Johnson, Eva 231-23-0001 Personnel 90 Very Good $ 84,473.43
Doe, Adam 230-07-9798 Finance 71 Good $ 47,519.77
15.Refer to Exhibit 1-1. The numbers of elements and variables are__________, respectively.
a. 4 and 6
b. 5 and 5
c. 5 and 6
d. 4 and 5
16.Refer to Exhibit 1-1. The data concerning Employee SS number is an example of
a. categorical data with a nominal scale of measurement
b. quantitative data with a ratio scale of measurement
c. categorical data with an ordinal scale of measurement
d. quantitative data with an interval scale of measurement 17.Refer to Exhibit 1-1. The data concerning Department is an example of ________ data.
a. nominalb. ordinalc. intervald. ratio18.Refer to Exhibit 1-1. The data concerning Yearly Salary is an example of ________ data.
a. nominalb. ordinalc. intervald. ratio19.Refer to Exhibit 1-1. The data concerning Employee Rank is an example of ________ data.
a. nominalb. ordinalc. intervald. ratio20.Refer to Exhibit 1-1. The
