How do the t and z distributions differ?
A)There is no difference between the t and z distributions.
B)The z distribution has broader tails (it is flatter around zero).
C)The t distribution has broader tails (it is flatter around zero).
D)The z distribution has asymptotic tails,while the t distribution does not.

Question

Quizplus · Accepted Answer

The t-distribution has broader tails than the standard normal (z) distribution. The t-distribution is used for smaller sample sizes, while the z-distribution is used for larger sample sizes. The t-distribution also has a flatter curve around the center than the z-distribution. The z-distribution has asymptotic tails, while the t-distribution does not.

How Do the T and Z Distributions Differ