Practice Test 1 –Bus 2023

Practice Test 1 –Bus 2023

Directions: For each question find the answer that is the best solution provided. There is only one correct answer.

1. Facts and figures that are collected, analyzed and summarized for presentation and interpretation are

a. data

b. variables

c. elements

d. Both variables and elements are correct.

2. All the data collected in a particular study are referred to as the

a. census

b. inference

c. variable

d. data set

3. Quantitative data

a. are always nonnumeric

b. may be either numeric or nonnumeric

c. are always numeric

d. are always labels

4. Qualitative data

a. are always nonnumeric

b. may be either numeric or nonnumeric

c. are always numeric

d. indicate either how much or how many

5. Arithmetic operations are inappropriate for

a. qualitative data

b. quantitative data

c. both qualitative and quantitative data

d. large data sets

6. In a questionnaire, respondents are asked to record their age in years. Age is an example of a

a. qualitative variable

b. quantitative variable

c. qualitative or quantitative variable, depending on how the respondents answered the question

d. ratio variable

7. In an application for a credit card, potential customers are asked for their social security numbers. A social security number is an example of a

a. qualitative variable

b. quantitative variable

c. qualitative or quantitative variable, depending on how the respondents answered the question

d. ratio variable

8. 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

9. Data collected over several time periods are

a. time series data

b. time controlled data

c. cross-sectional data

d. time cross-sectional data

10. Statistical studies in which researchers do not control variables of interest are

a....