Above is 2 generated Q-Q plot. In terms of skewness, since it concaves upwards, the Q -Q plot designate that the distribution are highly right skewed.

But how do I interpret it in terms of heaviness of tail. Which one has heavier tail?

Also, the moment-based kurtosis() function in R, is it sensitive to outliers? My dataset has many outliers. How do I find a way to determine the heaviness of the tail to know which one has heavier tail.

Thanks