Question

Consider a population with a mean of 20 and a standard deviation of 3. You take a sample of size 36. What is the expected value of the sample mean? Group of answer choices 20 16 ½

Answer 1

20

Explanation:

Sample Mean can be defined as the mean of a given set of samples in a data.

Sample Mean can be denoted by the symbol x bar.

From the question, we are given population mean as 20.

Hence, in this case, the expected value of the sample mean = population mean

Therefore, the expected value of the sample mean = 20