Which of the following best describes the Student's t distribution?
A) It is a sampling distribution for a random variable, t, derived from a normally distributed population.
B) It is single-peaked distribution above the random variable's mean, median, and mode of value 1.
C) It is always skewed, either to the right or to the left.

Question

Quizplus · Accepted Answer

The Student's t distribution is a sampling distribution that is derived from a normally distributed population. It is used for hypothesis testing and constructing confidence intervals when the sample size is small (less than 30) or when the population standard deviation is unknown. The distribution is bell-shaped like the normal distribution but has heavier tails, which means it is more spread out than the normal distribution, especially in the tails.

Which of the Following Best Describes the Student's T Distribution