$1.$The jump float serve has become a very popular serve at the elite level in volleyball. Currently, the technique is executed using a late toss and relatively small jump to ensure solid contact with the ball. The current method may be referred to as the Contact Focused technique. It is possible to execute a jump float serve with an earlier toss and maximum height jump. The higher contact point potentially allows the server to hit the ball with more velocity without serving past the end of the court. This novel method may be referred to as the Jump Focused technique. The associated Excel file contains data for a group of volleyball players in which each player executed both techniques. Conduct the appropriate statistical tests to address the following questions. $1)$ Does the Jump Focused technique result in a higher contact point? $2)$ Does the Jump Focused technique result in higher ball speeds? You will also be checking to see if this data set meets the assumptions of normality and equal variance.