The boss at a small data-entry company wanted to learn about the connection between nutrition and productivity. To find out, he recorded the number of data entry forms completed by each of his 10 employees in the hour immediately before and immediately after lunch. (Employees were not aware that their work productivity was being monitored.) Here are the data he collected:
Employee 1: 23 forms before lunch, 7 forms after lunch
Employee 2: 20 forms before lunch, 6 forms after lunch
Employee 3: 25 forms before lunch, 8 forms after lunch
Employee 4: 18 forms before lunch, 5 forms after lunch
Employee 5: 22 forms before lunch, 7 forms after lunch
Employee 6: 19 forms before lunch, 6 forms after lunch
Employee 7: 21 forms before lunch, 7 forms after lunch
Employee 8: 24 forms before lunch, 8 forms after lunch
Employee 9: 17 forms before lunch, 5 forms after lunch
Employee 10: 26 forms before lunch, 9 forms after lunch