Question: FairySprite produces bottled carbonated drinks, each of which should have a net weight of 4 ounces. The machine that fills the bottles is tested and adjusted regularly. The Ops Manager takes 8 samples, each with 5 bottles, and records the average and range in ounces in the table shown below. To monitor the process, which one of the following is correct if the manager wants to track the average weight of the bottles?
|
Sample
|
Sample range
|
Sample average
|
|
1
|
0.41
|
4.00
|
|
2
|
0.55
|
4.16
|
|
3
|
0.44
|
3.99
|
|
4
|
0.48
|
4.00
|
|
5
|
0.56
|
4.17
|
|
6
|
0.62
|
3.93
|
|
7
|
0.54
|
3.98
|
|
8
|
0.44
|
4.01
|