The times (in minutes) to assemble a computer component for 3 different machines are listed in the table below. Workers are randomly selected.
|
Machine 1
|
Machine 2
|
Machine 3
|
|
32
|
35
|
28
|
|
30
|
29
|
25
|
|
31
|
38
|
29
|
|
32
|
33
|
31
|
|
34
|
32
|
|
|
29
|
35
|
|
|
36
|
|
Assuming all conditions are met, test the claim that there is a difference in mean assembly time for each machine using a 5% level of significance. Use the P-value approach.