Question

a veterinary researcher takes an srs of 60 horses presenting with colic whose average age is 12 years. the average age of all horses seen at the veterinary clinic was determined to be 10 years. the researcher concludes that horses with colic are older. the value 10 years is:

Answer 1

The value 10 years is the population mean

Explanation:

A sample consists of some observations drawn from the population, so a part or a subset of the population which in this case is the number of horses with colic.

A sample mean is the mean of the statistical samples while a population mean is the mean of the total population.

Thus, in this case, the sample mean is the mean age of the horses with colic while the population mean age is the mean age of all the horses found at the clinic.

Therefore, the mean age of 10 of the horses seen at the clinic would be the population mean.