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 distributions are not skewed to the left. They are symmetric for large samples, and slightly skewed to the right for small samples.

Which Statement Is Not True Concerning the T Distribution