BUSINESS STATISTICS TOPIC 1 : LESSON 1

Which of the following best describes statistics?

• A method of data analysis

• A branch of mathematics

• A type of data

• A way to make decisions

Which of the following statements is not true about inferential statistics?

• It is used to summarize and describe data in a meaningful way.

• It is used to make inferences about a population based on a sample.

• It is used to test hypotheses about the population parameters.

• It is used to estimate population parameters.

Which of the following is an advantage of using primary data?

• Primary data is readily available and inexpensive.

• Primary data is already gathered and can be easily accessed.

• Primary data allows researchers to focus on specific issues and collect more accurate information.

• Primary data may have transcription errors.

What are not the disadvantages of using secondary data?

• May not meet specific needs

• Accuracy of the second

• May have transcription errors

• Not readily available or inexpensive

Why is it important for researchers to know how data were gathered?

• To present original and unbiased data.

• To focus the data collection on specific issues.

• To ensure the data is readily available and inexpensive.

• To save time in the research process.

Match following levels of measurement with the examples:

Race or Ethnicity

• Nominal

• Ordinal

• Interval

• Ratio

Match following levels of measurement with the examples:

Pain scale in a doctor’s office

• Nominal

• Ordinal

• Interval

• Ratio

Match following levels of measurement with the examples:

Hourly wages of students in fast food

• Nominal

• Ordinal

• Interval

• Ratio

Match following levels of measurement with the examples:

The temperature in Celcius

• Nominal

• Ordinal

• Interval

• Ratio

Match following levels of measurement with the examples:

Income level (T20, B40, M40)

• Nominal

• Ordinal

• Interval

• Ratio