A sample of size 16 is randomly selected from a population of size 90.Determine the standard error of the mean if the population standard deviation equals 20.
A)2.11
B)4.16
C)4.56
D)5.00

Question

Quizplus · Accepted Answer

The standard error of the mean is calculated using the formula: SE = σ / √n * √((N-n)/(N-1)), where σ is the population standard deviation, n is the sample size, and N is the population size. Plugging in the values: SE = 20 / √16 * √((90-16)/(90-1)) = 4.56.

A Sample of Size 16 Is Randomly Selected from a Population