Use this Excel activity to add a hands-on and real-world component to Crossover (also known as Contingency) table preparation in statistics. This activity has been tested with community college students. Those familiar with Excel will complete the assignment in 30 minutes. Those new to Excel can still follow the step by step formulas in less than 1 hour. This assignment continues the previous Shoe Store example but can also stand alone. The data can be used to spark discussions about shoe sells by price. Also, it helps students to recognize and avoid common pitfalls of row totals when calculating columns (and vice versa).