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?

1. Stratified sampling is used, since the field is divide into subplots and a random sample is taken from each subplot.
2. Convenience sampling is used, since the lettuce plants are closet to the barn are sampled.
3. Simple random sampling is used, since each sample of lettuce plants of the same amount has the same chance of being selected.
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.

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.