Interval Data
A courier service in a large city tracks the number of deliveries they are asked to make by 10 clients both before and after offering a progressive discount for repeat business. Their goal is to assess the effects of the discount.
|
Before
|
After
|
1
|
0
|
10
|
2
|
20
|
20
|
3
|
10
|
0
|
4
|
25
|
50
|
5
|
0
|
0
|
6
|
50
|
75
|
7
|
10
|
20
|
8
|
0
|
20
|
9
|
50
|
60
|
10
|
25
|
35
|
- What is the most appropriate statistical test in this situation? Why?
- Are there significant differences in the number of deliveries?
- If the goal is to promote repeat business, should the discount be continued?