The distribution of amount of money in savings accounts for the University of Alabama students has average of 950 dollars and standard deviation of 1,000 dollars. Assume that we take a random sample of 40 University of Alabama students and ask them how much they've in their savings account. The sampling distribution of sample mean amount of money in savings account is approximately Normal, with a mean of 950 and standard error of 1000
Approximately Normal, with the mean of 950 and standard error of 158.11
Not approximately normal
Approximately Normal with unknown mean as well as standard error