Question

In a test of the effectiveness of garlic for lowering​ cholesterol, 56 teenagers

were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The average​ (mean) change in the​ subjects' cholesterol level was ​4.6 mg/dL. Identify the​ population, sample, population​ parameters, and sample statistics.

Answer 1

The population in the study is all teenagers who could be treated with garlic tablets for cholesterol, while the sample includes the 56 teenagers who participated. Population parameters refer to the true average change in the entire population, whereas sample statistics indicate the observed average change of 4.6 mg/dL in the sample.

Step-by-step explanation:

In the context of the garlic tablet study for lowering cholesterol, the population refers to all teenagers who could potentially be treated with garlic tablets to lower their cholesterol.

The sample specifies the 56 teenagers who were actually treated and had their cholesterol levels measured in the study.

The population parameters would be the actual average change in cholesterol levels for all teenagers after the garlic tablet treatment, which we may not know unless the entire population can be studied.

The sample statistics are the measures computed from our sample, specifically the average change of 4.6 mg/dL in the cholesterol levels post-treatment of the sample of 56 teenagers.