# statistics question

• May 28th 2008, 08:36 PM
trukka
statistics question
It is claimed that a particular training course will increase the sales of insurance sales persons by an extra 5 policies per week. A company sends 8 randomly selected sales persons to attend the course. The weekly sales of these people before and after the course are listed below. Does the sample data support the claim? Assume a=0.10.

sales person sales before sales after
1 28 35
2 30 36
3 35 40
4 42 52
5 37 39
6 38 49
7 39 53
8 34 38
• May 28th 2008, 08:59 PM
mr fantastic
Quote:

Originally Posted by trukka
It is claimed that a particular training course will increase the sales of insurance sales persons by an extra 5 policies per week. A company sends 8 randomly selected sales persons to attend the course. The weekly sales of these people before and after the course are listed below. Does the sample data support the claim? Assume a=0.10.

sales person sales before sales after
1 28 35
2 30 36
3 35 40
4 42 52
5 37 39
6 38 49
7 39 53
8 34 38

Use a paired t-test.
• May 29th 2008, 01:34 AM
trukka
I think we have to use the Neyman-Pearson Lemma to solve it