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.

Question

Quizplus · Accepted Answer

The t distribution is symmetric and not skewed to the left. Option A is true because the t distribution has more area in the tails and less in the center than the normal distribution. Option B is also true because as the number of degrees of freedom increase, the t distribution approaches the normal distribution. Option D is also true because the population variance is unknown and is estimated by the sample variance.

Which Statement Is Not True Concerning the T Distribution