WorksheetsM5T2 #2
Total questions: 11
Worksheet time: 18mins
Group the businesses according to type: medical, shipping, retail, manufacturing, financial, construction, restaurant, hotel, tourism, other. Then select a random sample of 10 businesses from each business type. What kind of sampling techniques is this?
Systematic sampling
Cluster Sampling
Stratified sampling
Convenience sampling
Identify the population and sample.
A survey of 1535 American households found that 18% of households do not own a computer.
Population: 1535 American households
Sample: 18% of households
Population: All American households
Sample: 1535 American households
Population: All American households
Sample: 18% of households
Population: 1535 American households
Sample: 276 households
A local candle store surveys 50 customers to find out their opinion on a new scented candle. The customers were chosen randomly from the store mailing list.
Is this sampling method random?
Yes
No
A researcher wants to investigate the relationship between coffee consumption and heart health. They design a study where they survey individuals about their coffee consumption habits and measure their cholesterol levels. However, they fail to account for another variable that may confound the relationship between coffee consumption and cholesterol levels.
Which of the following could be a confounding variable in the researcher’s study?
time of day when coffee was consumed
activity level (exercise)
gender of participants
age of participants
What does characteristics of interest mean
Your group as a whole.
One way of collecting data.
The specific question that you are trying to answer or information you are trying to gather,
sample collected in a way that makes it unrepresentative of the population.
