The Department of Labor (DOL) would like to investigate if there is a difference in the average number of hours worked per week by employees in the United States, China, and Denmark. They would also like to test if the age of the employee impacts the average number of hours worked per week. The following data show the number of hours that a random sample of employees worked last week in each country along with their age group. These data can also be found in the Excel fileDOL.xlsx

USA China Denmark 36 38 24 40 41 27 36 45 36 30 to under 40 30 39 37 43 46 31 36 42 35 40 55 25 45 51 30 44 58 32 40 to under 50 43 52 28 49 56 30 40 52 39USA China Denmark x_i00 30 to under 40 40 to under 50 x_0j0 grand mean 553 30 to under 40 40 to under 50 30 to under 40 40 to under 50 SSAB Source of Variation 53:32: 13:: Mean Squares F F_critical age group (A) Country (B) AB Error Total