Statistics Quiz

Which of the following is an example of qualitative data?

• Temperature in degrees Celsius

• Number of cars in a parking lot

• Colors of cars in a parking lot

• Age of students in a class

What is the main purpose of inferential statistics?

• To summarize and describe data

• To make predictions and inferences about a population based on a sample

• To display data in graphical form

• To calculate sample statistics

The average height of all students in a school is an example of a:

• Population parameter

• Sample statistic

• Qualitative data point

• Ratio level of measurement

Which of the following is a quantitative data type?

• Eye color

• Temperature

• Marital status

• Gender

What is the best level of measurement that allows for meaningful calculations of ratios? (u better get this right)

• Nominal

• Ordinal

• Interval

• Ratio

What method of data collection involves collecting data by asking questions directly to individuals or groups?

• Simulation

• Experimentation

• Survey

• Observation

In a simple random sample, every member of the population has:

• An equal chance of being included

• No chance of being included

• A guaranteed spot in the sample

• A fixed position in the sample

When a researcher divides a population into subgroups and then randomly selects individuals from each subgroup, they are using which sampling technique?

• Convenience sampling

• Stratified sampling

• Cluster sampling

• Systematic sampling

A researcher wants to collect data on customer satisfaction by randomly selecting every 10th customer who enters a store. What sampling technique is being used?

• Convenience sampling

• Stratified sampling

• Cluster sampling

• Systematic sampling

Which data collection method involves manipulating one or more variables to observe the effect on another variable of interest?

• Simulation

• Experimentation

• Survey

• Observation