A recent study on the number of hours students spend studying each week revealed the following data:

For a sample of 10 students: 5, 7, 9, 10, 10, 12, 13, 15, 18, 20 hours.

Calculate the mean and median study hours for this group.

Let Quantity A represent the mean of the data set.

Let Quantity B represent the median of the data set.

Determine the relationship between Quantity A and Quantity B.