Which of the following is a difference between the t-distribution and the standard normal distribution?
A) The t-distribution cannot be calculated without a known standard deviation, while the standard normal distributions can be.
B) The standard normal distribution's confidence levels are wider than those of the t-distribution.
C) The t-distribution has a larger variance than the standard normal distribution.
D) The standard normal distribution is dependent on parameters like degrees of freedom, while t- distribution is not.

Question

Quizplus · Accepted Answer

The t-distribution has a larger variance than the standard normal distribution, especially with smaller sample sizes, due to its dependency on degrees of freedom. As the sample size increases, the t-distribution approaches the standard normal distribution.

Which of the Following Is a Difference Between the T-Distribution