1) Determine whether the evaluated group is a population or a sample
a) Based on a randomly selected group of 500 patients with high cholesterol, it was found that 67% have heart disease. Is this a population or a sample; explain your answer.
b) An investigation of 150 randomly selected local restaurants concluded that 42% of local restaurants have serious health code violations. Is this a population or a sample; explain your answer.
a. This is a sample because a population is a collection of data whose properties are …
The solution provides detailed examples for population versus sample.