Lettuce is planted on a 51-acre field. The field is divide into one-acre subplots. A sample is taken from each subplot to estimate the harvest.
Question 14.
Identify the sampling techniques used and discuss potential sources of bias (if any). Explain.
Lettuce is planted on a 51-acre field. The field is divide into one-acre subplots. A sample is taken from each subplot to estimate the harvest.
What type of sampling is used?
- Stratified sampling is used, since the field is divide into subplots and a random sample is taken from each subplot.
- Convenience sampling is used, since the lettuce plants are closet to the barn are sampled.
- Simple random sampling is used, since each sample of lettuce plants of the same amount has the same chance of being selected.
- Cluster sampling is used, since the field is divided into subplots, a number of subplots are selected, and every lettuce plant in the selected subplots is sampled.
Answer – Option 4. Cluster sampling is used, since the field is divided into subplots, a number of subplots are selected, and every lettuce plant in the selected subplots is sampled.