Question

Question 1

The T distribution is used when you have the standard deviation of the population (σ).

True

False

Answer 1

Solution:

When standard deviation of the population $\sigma$ is known, we use standard normal distribution (z distribution).

When standard deviation of population is unknown then we use its sample estimate called as sample standard deviation and denoted by s, thus in this case we use T distribution.

Thus given statement is False.