1) A population has a mean of = 50 and a standard deviation of = 12.

For samples of size n = 16, what is

a)the mean (expected value) and

b)the standard deviation (standard error) for the distribution of sample means?

2) A population has a mean of = 100 and a standard deviation of = 16.

For samples of size n = 16, what is

a) the mean (expected value) and

b) the standard deviation (standard error) for the distribution of sample means?