A mid-sized company has decided to implement an enterprise resource planning (ERP) system, and management suspects that many of its employees are concerned about the planned implementation. Managers are considering holding informational workshops to help decrease anxiety levels among employees. To determine whether such an approach would be effective, they randomly select 16 employees to participate in a pilot workshop. These employees were given a questionnaire to measure anxiety levels about ERP before and after participating in the workshop. Do the data indicate that anxiety levels about ERP decrease as a result of the workshop?
Use the data below to answer the next set of questions:
Pre-workshop anxiety level: 9 5 6 7 5 7 6 4 3 2 1 3 4 2
Post-workshop anxiety level: 3 7 3 4 5 4 6 5 3 2 2 1 3 4 3
Difference (Post - Pre): 3 -3 -2 -2 -2 -2 -1 -1 -1 -1 -1 0 0 1
Question 5:
Which of the assumptions and conditions for carrying out the paired t-test are satisfied? (check all that apply):
- Paired data
- Randomization
- Nearly Normal condition