Which statement is NOT true concerning the t distribution? A) Compared to the normal distribution, the t distribution has more area in the tails and less in the center. B) As the number of degrees of freedom increases, the t distribution approaches the normal distribution. C) The t distributions are skewed to the left. D) The population variance is unknown and is estimated by the sample variance s². E) As the sample size increases beyond 120, the t and Z distributions are indistinguishable.

Question

Quizplus · Accepted Answer

The t distribution is not necessarily skewed to the left or to the right. The direction of skewness depends on the specific values of the degrees of freedom parameter. The t distribution can be symmetric, skewed to the left, or skewed to the right, depending on the degrees of freedom.

Which Statement Is NOT True Concerning the T Distribution