Which of the following is true of the t-distribution?
A)It has narrower confidence intervals than the standard normal distribution.
B)It's only used to calculate confidence intervals where there is no known population standard deviation.
C)It converges to the standard normal distribution as degrees of freedom increase.
D)It does not require parameters such as degrees of freedom.

Question

Quizplus · Accepted Answer

The t-distribution is a probability distribution that is used to estimate population parameters when the sample size is small and the population standard deviation is unknown. As the degrees of freedom increase, the t-distribution approaches the standard normal distribution.

Which of the Following Is True of the T-Distribution