Question

You wish to estimate the mean cholesterol levels of patients two days after they had a heart attack. To estimate the mean, you collect data from 28 heart patients. State the individual, variable, population, sample, parameter and statistic.

Answer 1

Data was collected from 28 heart patients.

Individual:

Heart patient

Variable:

Cholesterol level

Population:

All patients who had a heart attack two days ago

Sample:

28 heart patients

Parameter:

Mean cholesterol level of patients two days after they had a heart attack

Statistic: