Question

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. to determine if anxiety levels about erp decrease as a result of the workshop, what test should they use?

choices
a. two tailed test of two independent means
b. one tailed test of two proportions
c one tailed paired t test
d one tailed test of two independent means
e two tailed paired test

Answer 1

c one tailed paired t test

Explanation:

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. to determine if anxiety levels about erp decrease as a result of the workshop, what test should they use?

One tailed paired t-test is used by the company and this type of paired t-test is used when we want to compare two population means where you have two samples in which observations in one sample can be paired with observations in the other sample in order word , it is been used when we are interested in the difference between two variables for the same subject