A manufacturer of automobile transmissions uses two different processes. Management ordered a study of the production costs to see if there is a difference between the two processes. A summary of the findings is shown next. What is the critical value of F at the 5% level of significance?
A)19.45
B)3.00
C)4.41
D)4.38

Question

A manufacturer of automobile transmissions uses two different processes. Management ordered a study of the production costs to see if there is a difference between the two processes. A summary of the findings is shown next.  What is the critical value of F at the 5% level of significance?
A)19.45 
B)3.00 
C)4.41 
D)4.38

Quizplus · Accepted Answer

To find the critical value of F at the 5% level of significance, we need to use the F-distribution table with (n1-1) = 18 and (n2-1) = 15 degrees of freedom. From the table, we find that the critical value with α = 0.05 and d.f. = (18,15) is 4.41. Therefore, the answer is C.

A Manufacturer of Automobile Transmissions Uses Two Different Processes