A manufacturing company conducted a safety awareness program at 10 different production facilities. The following data represent the number of man-hours lost over a onemonth period at each facility before and after the program.

These data can also be found in the Excel file safety.xlsx.

Facility A B C D E F G H I J Before 13 19 16 21 14 9 18 41 17 19 After 10 15 14 23 10 11 15 25 10 10 Using a = 0.05, perform a hypothesis test to determine if the safety awareness program reduced the number manhours lost at the facilities.

AppendixLO1