Identify the sampling techniques used, and discuss potential sources of bias Exp

Question

Identify the sampling techniques used, and discuss potential sources of bias Explain. Wheat is planted on a 50 - acre field. The field is divided into one - acre subplots A sample is taken from each subplot to estimate the harvest. What type of sampling is used Convenience sampling is used, since the wheat plants closest to the barn are sampled Cluster sampling is used, since the field is divided into subplots, a number of subplots are selected, and every wheat plant in the selected Simple random sampling is used, since each sample of wheat plants of the same amount has the same chance of being selected. Stratified sampling is used since the field is divided into subplots and a random sample is taken from each subplot. What potential sources of bias are present if any? Select all that apply ? A. It is possible that duo to sampling error the sample will not be representative ? B. The sample only consists of the wheat plants that are easiest to reach This may not be resentative of the entire population ? C. Certain subplots may have more or fewer wheat plants than others Samples from these subplots may bias the overall sample Q D. There are no potential sources of bias

Explanation / Answer

1) D

2)A,C

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