Contingency Table gives the number of acceptable and nonacceptable electronic components produced at various hours of the morning in a random sample from the output of a plant. Should the hypothesis be accepted or rejected at the 5% level of significance that the production of acceptable items is independent of the hour of the morning in which they are produced?
Table Acceptable and Nonacceptable Components Produced Each Hour of the Morning
|
|
8-9 A.M.
|
9-10 A.M.
|
10-11 A.M.
|
11-12 A.M.
|
Total
|
|
Acceptable
|
60
|
75
|
80
|
65
|
280
|
|
Nonacceptable
|
30
|
25
|
30
|
35
|
120
|
|
90
|
100
|
110
|
100
|
400
|