Consider the following data :

5.24

6.67

7.59

8.35

9.45

10.39

You are given that the mean is7.948and the standard deviation1.86953

Calculate the following:

________________________ D^8= (the eighth decile)

_________________________ P^67= (67th percentile)

_________________________ Q^3=(the third quartile)

_________________________ the coefficient of skewness to three decimal places