Please select all that are true statements The Student tdist

Please select all that are true statements: The Student t-distribution with one degree of freedom:

(a) has fatter tails than the standard normal distribution

(b) can be used to obtain confidence limits for the mean of a normal distribution from a sample of 2 observations

(c) has mean 0

(d) has variance 1

Solution

a) , ( b) , (c) are true!
d) is false!