Refer to the images in the slide "Quantile-Quantile (QQ) Plots (3)" which show data drawn from a student's T distribution (for n = 10,500,100, 1000,5000,10000) compared to the standard normal \, \mathcal{N}(0,1).
Upon examining the QQ plots in that slides, would you conclude that the tails (both left and right) of the student's T distribution are heavier or lighter than those of the standard normal distribution?
1 answer
Based on the QQ plots in the slide, it can be concluded that the tails of the student's T distribution are heavier or fatter than those of the standard normal distribution. This is seen by the student's T distribution curves deviating from the straight line representing the standard normal distribution in the tails, indicating that there is a higher frequency of extreme values in the student's T distribution compared to the standard normal distribution.