The results for 6 replications of a calling center, are summarized on the table
|
Replication
|
Y= Average Response time(minutes)
|
|
1
|
6.78
|
|
2
|
3.48
|
|
3
|
6.79
|
|
4
|
5.32
|
|
5
|
8.24
|
|
6
|
6.99
|
[Note that; Sample mean is 6.27 and the standard deviation is 1.65]
If you know that ? = 1 minutes is critical, use the confidence-interval approach to assess the validity of the model. Knowing that μ0= 5.8 minutes.