Question 1

Which of the following best describes the difference between data and information in the context of business statistics?

Accepted Answer

Data are values assigned to observations or measurements, while information is data transformed into useful facts for decision-making.

Question 2

A company wants to predict next year’s sales based on the past five years of sales data. Which branch of statistics is most relevant to this task?

Accepted Answer

Predictive statistics

Question 3

Which of the following is an example of primary data collection?

Accepted Answer

Conducting an experiment to test the effect of a new fertilizer on crop growth

Question 4

A survey asks, 'Wouldn’t you agree that all drivers should wear a seat belt?' What statistical issue does this question illustrate?

Accepted Answer

Bias

Question 5

Which of the following best describes a population in statistics?

Accepted Answer

All possible subjects that are of interest in a particular study

Question 6

A researcher collects the heights of 100 randomly selected college students to estimate the average height of all college students in the country. In this scenario, what is the sample and what is the population?

Accepted Answer

Sample: 100 selected students; Population: All college students

Question 7

Which of the following is an example of cross-sectional data?

Accepted Answer

Unemployment rates for all U.S. states in 2023

Question 8

Which level of measurement is represented by the following data: Education level (Bachelor’s, Master’s, Doctorate)?

Accepted Answer

Ordinal

Question 9

A business analyst uses a sample mean to estimate the average income of all customers. The sample mean is an example of which of the following?

Accepted Answer

Statistic

Question 10

Which of the following is a potential disadvantage of using secondary data?

Accepted Answer

You have no control over how the data was collected

Question 11

A company wants to summarize and display the results of a customer satisfaction survey. Which branch of statistics should they use?

Accepted Answer

Descriptive statistics

Question 12

Which of the following is an example of ratio level data?

Accepted Answer

Income ($$48,000, 0)$$

Question 13

A weather database contains daily high and low temperatures for New York City in January 2023. What type of data is this?

Accepted Answer

Quantitative, time series

Question 14

Which of the following actions could lead to misuse of statistics in a business report?

Accepted Answer

Changing the scale of a graph to exaggerate trends

Question 15

A company wants to know if the average weight of their cereal boxes is greater than 18.0 oz. They select a random sample and find a sample average of 18.2 oz. Which statistical process are they using?

Accepted Answer

Inferential statistics

Question 16

Which of the following best describes a biased sample?

Accepted Answer

A sample that does not represent the intended population

Question 17

A business wants to compare unemployment rates across five states in 2023. Which type of data are they analyzing?

Accepted Answer

Cross-sectional data

Question 18

Which of the following is a key advantage of primary data over secondary data?

Accepted Answer

You have control over how the data is collected

Question 19

If a business analyst wants to make a claim about the entire population based on a sample, which branch of statistics are they using?

Accepted Answer

Inferential statistics

Question 20

Which of the following is an example of qualitative data?

Accepted Answer

Level of education

Chapter 1: An Introduction to Business Statistics – Study Notes

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