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daser333 [38]
3 years ago
9

Determine whether the study is an experiment or an observational​ study, and then identify a major problem with the study. A med

ical researcher tested for a difference in systolic blood pressure levels between male and female students who are 12 years of age. She randomly selected four males and four females for her study. This is an ▼ because the researcher ▼ does not attempt to modify applies a treatment to the individuals. What is a major problem with the​ study? A. There is no​ blinding, which has a high chance of leading to bias. B. The sample includes male and female students. C. This is a convenience sample with voluntary​ response, which has a high chance of leading to bias. D. The sample is too small.
Social Studies
1 answer:
Phoenix [80]3 years ago
5 0

Answer:

Observational study/The sample is too small

Explanation:

The study is observational since there is no attempt to modify nor apply any kind of treatment.

An important problem in this study is the quantity of the sample. It is explained that the research selected only 8 individuals, which is not a significant sample. The minimum number of samples should be at least 30.

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