LSSGB: Find the value of FSTAT (F-Statistics)

Machines A & B have been showing disparate efficiency and defects per unit rates despite similar variation in quality at purchase time. If the mean squares between the 2 machines is 250 and the mean square from each machine is 100, what is the value of FSTAT (F-Statistics)?

OPTIONS

• 0.4
• 5
• 2.5
• 4

ANSWER

2.5

EXPLANATION

FSTAT (F-Statistics) = 250/100 = 2.5