Example 2

High levels of blood glucose are a strong predictor for developing diabetes. Blood glucose is typically tested after fasting overnight, and the test result is called a fasting glucose level. A doctor wants to determine the percentage of his patients who have high glucose levels. He reviewed the glucose test results for 25 patients to determine how many of them had a fasting glucose level greater than 100 mg/dL (milligrams per deciliter). He recorded each patient’s fasting glucose level in a table. Identify the population, parameter, sample, and statistic of interest in this situation, and then calculate the percent of patients in the sample with a fasting glucose level above 100 mg/dL.
  1. Identify the population in this situation.
  2. Identify the parameter in this situation.
  3. Identify the sample in this situation.
  4. Identify the statistic of interest in this situation.
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