Which of the following statements is false?
(A)Like the normal distribution, the t-distributions are symmetric. (B)The t-distributions are lower at the mean and higher at the tails, and so are more spread out than the normal distribution. (C)The greater the df, the closer the t-distributions are to the normal distribution. (D)The smaller the df, the better the 68-95-99.7 Rule works for t-models.
D