Samples of n = 16 scores are selected from a population. If the distribution of sample means has an expected value of 40 and a standard error of 2, what isthe mean and the standard deviation for the population?
a. = 40 and = 2 c. = 40 and = 32
b. = 40 and = 8 d. = 160 and = 2
Question 2
For a population with = 80 and = 20, the distribution of sample means based on n = 16 will have an expected value of ____ and a standard error of ____.
a. 5; 80 c. 20; 20
b. 80; 5 d. 80; 1.25
